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Finding the Fourth Proportional to 107,123.48, 147,839.12 and 59,390.96

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Solution

The fourth proportional to 107,123.48, 147,839.12 and 59,390.96 is: 81,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,123.48 : 147,839.12 = 59,390.96 : x
  2. Step 2: Convert to fraction form
    107,123.48/147,839.12 = 59,390.96/x
  3. Step 3: Cross multiply
    107,123.48x = 147,839.12 × 59,390.96
  4. Step 4: Simplify right side
    107,123.48x = 8,780,307,262.36
  5. Step 5: Solve for x
    x = 8,780,307,262.36/107,123.48
  6. Step 6: Final answer
    x = 81,964.36

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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.