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Finding the Fourth Proportional to 121,553.68, 167,737.08 and 67,834.48

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Solution

The fourth proportional to 121,553.68, 167,737.08 and 67,834.48 is: 93,607.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,553.68 : 167,737.08 = 67,834.48 : x
  2. Step 2: Convert to fraction form
    121,553.68/167,737.08 = 67,834.48/x
  3. Step 3: Cross multiply
    121,553.68x = 167,737.08 × 67,834.48
  4. Step 4: Simplify right side
    121,553.68x = 11,378,357,598.52
  5. Step 5: Solve for x
    x = 11,378,357,598.52/121,553.68
  6. Step 6: Final answer
    x = 93,607.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.