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Finding the Fourth Proportional to 107,216.62, 147,862.12 and 66,934.12

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Solution

The fourth proportional to 107,216.62, 147,862.12 and 66,934.12 is: 92,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,216.62 : 147,862.12 = 66,934.12 : x
  2. Step 2: Convert to fraction form
    107,216.62/147,862.12 = 66,934.12/x
  3. Step 3: Cross multiply
    107,216.62x = 147,862.12 × 66,934.12
  4. Step 4: Simplify right side
    107,216.62x = 9,897,020,883.53
  5. Step 5: Solve for x
    x = 9,897,020,883.53/107,216.62
  6. Step 6: Final answer
    x = 92,308.64

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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.