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Finding the Fourth Proportional to 121,061.80, 181,592.70 and 93,035.80

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Solution

The fourth proportional to 121,061.80, 181,592.70 and 93,035.80 is: 139,553.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,061.80 : 181,592.70 = 93,035.80 : x
  2. Step 2: Convert to fraction form
    121,061.80/181,592.70 = 93,035.80/x
  3. Step 3: Cross multiply
    121,061.80x = 181,592.70 × 93,035.80
  4. Step 4: Simplify right side
    121,061.80x = 16,894,622,118.66
  5. Step 5: Solve for x
    x = 16,894,622,118.66/121,061.80
  6. Step 6: Final answer
    x = 139,553.70

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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.