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Finding the Fourth Proportional to 185,600.40, 278,400.60 and 154,496.40

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Solution

The fourth proportional to 185,600.40, 278,400.60 and 154,496.40 is: 231,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,600.40 : 278,400.60 = 154,496.40 : x
  2. Step 2: Convert to fraction form
    185,600.40/278,400.60 = 154,496.40/x
  3. Step 3: Cross multiply
    185,600.40x = 278,400.60 × 154,496.40
  4. Step 4: Simplify right side
    185,600.40x = 43,011,890,457.84
  5. Step 5: Solve for x
    x = 43,011,890,457.84/185,600.40
  6. Step 6: Final answer
    x = 231,744.60

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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.