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Finding the Fourth Proportional to 101,740.98, 140,385.44 and 67,800.14

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Solution

The fourth proportional to 101,740.98, 140,385.44 and 67,800.14 is: 93,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,740.98 : 140,385.44 = 67,800.14 : x
  2. Step 2: Convert to fraction form
    101,740.98/140,385.44 = 67,800.14/x
  3. Step 3: Cross multiply
    101,740.98x = 140,385.44 × 67,800.14
  4. Step 4: Simplify right side
    101,740.98x = 9,518,151,953.53
  5. Step 5: Solve for x
    x = 9,518,151,953.53/101,740.98
  6. Step 6: Final answer
    x = 93,552.78

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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.