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Finding the Fourth Proportional to 101,651.93, 140,280.49 and 56,330.68

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Solution

The fourth proportional to 101,651.93, 140,280.49 and 56,330.68 is: 77,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,651.93 : 140,280.49 = 56,330.68 : x
  2. Step 2: Convert to fraction form
    101,651.93/140,280.49 = 56,330.68/x
  3. Step 3: Cross multiply
    101,651.93x = 140,280.49 × 56,330.68
  4. Step 4: Simplify right side
    101,651.93x = 7,902,094,691.03
  5. Step 5: Solve for x
    x = 7,902,094,691.03/101,651.93
  6. Step 6: Final answer
    x = 77,736.79

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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.