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Finding the Fourth Proportional to 92,601.90, 138,904.89 and 64,110.78

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Solution

The fourth proportional to 92,601.90, 138,904.89 and 64,110.78 is: 96,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,601.90 : 138,904.89 = 64,110.78 : x
  2. Step 2: Convert to fraction form
    92,601.90/138,904.89 = 64,110.78/x
  3. Step 3: Cross multiply
    92,601.90x = 138,904.89 × 64,110.78
  4. Step 4: Simplify right side
    92,601.90x = 8,905,300,843.71
  5. Step 5: Solve for x
    x = 8,905,300,843.71/92,601.90
  6. Step 6: Final answer
    x = 96,167.58

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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.