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Finding the Fourth Proportional to 91,594.62, 138,098.28 and 91,026

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Solution

The fourth proportional to 91,594.62, 138,098.28 and 91,026 is: 137,240.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,594.62 : 138,098.28 = 91,026 : x
  2. Step 2: Convert to fraction form
    91,594.62/138,098.28 = 91,026/x
  3. Step 3: Cross multiply
    91,594.62x = 138,098.28 × 91,026
  4. Step 4: Simplify right side
    91,594.62x = 12,570,534,035.28
  5. Step 5: Solve for x
    x = 12,570,534,035.28/91,594.62
  6. Step 6: Final answer
    x = 137,240.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.