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Finding the Fourth Proportional to 187,011,208.40, 280,516,812.60 and 187,011,208.40

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Solution

The fourth proportional to 187,011,208.40, 280,516,812.60 and 187,011,208.40 is: 280,516,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,011,208.40 : 280,516,812.60 = 187,011,208.40 : x
  2. Step 2: Convert to fraction form
    187,011,208.40/280,516,812.60 = 187,011,208.40/x
  3. Step 3: Cross multiply
    187,011,208.40x = 280,516,812.60 × 187,011,208.40
  4. Step 4: Simplify right side
    187,011,208.40x = 52,459,788,100,842,352
  5. Step 5: Solve for x
    x = 52,459,788,100,842,352/187,011,208.40
  6. Step 6: Final answer
    x = 280,516,812.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.