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Finding the Fourth Proportional to 107,201.97, 147,890.21 and 66,925.67

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Solution

The fourth proportional to 107,201.97, 147,890.21 and 66,925.67 is: 92,327.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,201.97 : 147,890.21 = 66,925.67 : x
  2. Step 2: Convert to fraction form
    107,201.97/147,890.21 = 66,925.67/x
  3. Step 3: Cross multiply
    107,201.97x = 147,890.21 × 66,925.67
  4. Step 4: Simplify right side
    107,201.97x = 9,897,650,316.61
  5. Step 5: Solve for x
    x = 9,897,650,316.61/107,201.97
  6. Step 6: Final answer
    x = 92,327.13

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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.