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Finding the Fourth Proportional to 499,123.29, 748,385.06 and 195,155.27

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Solution

The fourth proportional to 499,123.29, 748,385.06 and 195,155.27 is: 292,615.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,123.29 : 748,385.06 = 195,155.27 : x
  2. Step 2: Convert to fraction form
    499,123.29/748,385.06 = 195,155.27/x
  3. Step 3: Cross multiply
    499,123.29x = 748,385.06 × 195,155.27
  4. Step 4: Simplify right side
    499,123.29x = 146,051,291,569.99
  5. Step 5: Solve for x
    x = 146,051,291,569.99/499,123.29
  6. Step 6: Final answer
    x = 292,615.66

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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.