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Finding the Fourth Proportional to 362,683.44, 544,038.96 and 138,001.92

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Solution

The fourth proportional to 362,683.44, 544,038.96 and 138,001.92 is: 207,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,683.44 : 544,038.96 = 138,001.92 : x
  2. Step 2: Convert to fraction form
    362,683.44/544,038.96 = 138,001.92/x
  3. Step 3: Cross multiply
    362,683.44x = 544,038.96 × 138,001.92
  4. Step 4: Simplify right side
    362,683.44x = 75,078,421,034.80
  5. Step 5: Solve for x
    x = 75,078,421,034.80/362,683.44
  6. Step 6: Final answer
    x = 207,008.13

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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.