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Finding the Fourth Proportional to 73,200.30, 109,915.65 and 42,096.30

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Solution

The fourth proportional to 73,200.30, 109,915.65 and 42,096.30 is: 63,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,200.30 : 109,915.65 = 42,096.30 : x
  2. Step 2: Convert to fraction form
    73,200.30/109,915.65 = 42,096.30/x
  3. Step 3: Cross multiply
    73,200.30x = 109,915.65 × 42,096.30
  4. Step 4: Simplify right side
    73,200.30x = 4,627,042,177.10
  5. Step 5: Solve for x
    x = 4,627,042,177.10/73,200.30
  6. Step 6: Final answer
    x = 63,210.70

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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.