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Finding the Fourth Proportional to 107,767.99, 148,719.75 and 62,472.21

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Solution

The fourth proportional to 107,767.99, 148,719.75 and 62,472.21 is: 86,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,767.99 : 148,719.75 = 62,472.21 : x
  2. Step 2: Convert to fraction form
    107,767.99/148,719.75 = 62,472.21/x
  3. Step 3: Cross multiply
    107,767.99x = 148,719.75 × 62,472.21
  4. Step 4: Simplify right side
    107,767.99x = 9,290,851,497.73
  5. Step 5: Solve for x
    x = 9,290,851,497.73/107,767.99
  6. Step 6: Final answer
    x = 86,211.60

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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.