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Finding the Fourth Proportional to 200,702.40, 301,098.56 and 67,572.40

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Solution

The fourth proportional to 200,702.40, 301,098.56 and 67,572.40 is: 101,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,702.40 : 301,098.56 = 67,572.40 : x
  2. Step 2: Convert to fraction form
    200,702.40/301,098.56 = 67,572.40/x
  3. Step 3: Cross multiply
    200,702.40x = 301,098.56 × 67,572.40
  4. Step 4: Simplify right side
    200,702.40x = 20,345,952,335.74
  5. Step 5: Solve for x
    x = 20,345,952,335.74/200,702.40
  6. Step 6: Final answer
    x = 101,373.74

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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.