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Finding the Fourth Proportional to 502,108.76, 753,169.23 and 147,129.98

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Solution

The fourth proportional to 502,108.76, 753,169.23 and 147,129.98 is: 220,696.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,108.76 : 753,169.23 = 147,129.98 : x
  2. Step 2: Convert to fraction form
    502,108.76/753,169.23 = 147,129.98/x
  3. Step 3: Cross multiply
    502,108.76x = 753,169.23 × 147,129.98
  4. Step 4: Simplify right side
    502,108.76x = 110,813,773,746.52
  5. Step 5: Solve for x
    x = 110,813,773,746.52/502,108.76
  6. Step 6: Final answer
    x = 220,696.75

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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.