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Finding the Fourth Proportional to 100,543.71, 150,779.10 and 37,349.13

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Solution

The fourth proportional to 100,543.71, 150,779.10 and 37,349.13 is: 56,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,543.71 : 150,779.10 = 37,349.13 : x
  2. Step 2: Convert to fraction form
    100,543.71/150,779.10 = 37,349.13/x
  3. Step 3: Cross multiply
    100,543.71x = 150,779.10 × 37,349.13
  4. Step 4: Simplify right side
    100,543.71x = 5,631,468,207.18
  5. Step 5: Solve for x
    x = 5,631,468,207.18/100,543.71
  6. Step 6: Final answer
    x = 56,010.15

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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.