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Finding the Fourth Proportional to 101,614.61, 140,236.78 and 56,306.81

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Solution

The fourth proportional to 101,614.61, 140,236.78 and 56,306.81 is: 77,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,614.61 : 140,236.78 = 56,306.81 : x
  2. Step 2: Convert to fraction form
    101,614.61/140,236.78 = 56,306.81/x
  3. Step 3: Cross multiply
    101,614.61x = 140,236.78 × 56,306.81
  4. Step 4: Simplify right side
    101,614.61x = 7,896,285,094.68
  5. Step 5: Solve for x
    x = 7,896,285,094.68/101,614.61
  6. Step 6: Final answer
    x = 77,708.17

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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.