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Finding the Fourth Proportional to 502,877.10, 754,339.28 and 165,947.21

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Solution

The fourth proportional to 502,877.10, 754,339.28 and 165,947.21 is: 248,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,877.10 : 754,339.28 = 165,947.21 : x
  2. Step 2: Convert to fraction form
    502,877.10/754,339.28 = 165,947.21/x
  3. Step 3: Cross multiply
    502,877.10x = 754,339.28 × 165,947.21
  4. Step 4: Simplify right side
    502,877.10x = 125,180,494,307.98
  5. Step 5: Solve for x
    x = 125,180,494,307.98/502,877.10
  6. Step 6: Final answer
    x = 248,928.60

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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.