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Finding the Fourth Proportional to 101,693.45, 152,538.56 and 31,572.83

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Solution

The fourth proportional to 101,693.45, 152,538.56 and 31,572.83 is: 47,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,693.45 : 152,538.56 = 31,572.83 : x
  2. Step 2: Convert to fraction form
    101,693.45/152,538.56 = 31,572.83/x
  3. Step 3: Cross multiply
    101,693.45x = 152,538.56 × 31,572.83
  4. Step 4: Simplify right side
    101,693.45x = 4,816,073,865.46
  5. Step 5: Solve for x
    x = 4,816,073,865.46/101,693.45
  6. Step 6: Final answer
    x = 47,358.74

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1.5x scale

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.