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Finding the Fourth Proportional to 70,300.20, 105,552.70 and 49,615.40

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Solution

The fourth proportional to 70,300.20, 105,552.70 and 49,615.40 is: 74,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,300.20 : 105,552.70 = 49,615.40 : x
  2. Step 2: Convert to fraction form
    70,300.20/105,552.70 = 49,615.40/x
  3. Step 3: Cross multiply
    70,300.20x = 105,552.70 × 49,615.40
  4. Step 4: Simplify right side
    70,300.20x = 5,237,039,431.58
  5. Step 5: Solve for x
    x = 5,237,039,431.58/70,300.20
  6. Step 6: Final answer
    x = 74,495.37

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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.