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Finding the Fourth Proportional to 98,893.18, 136,472.75 and 58,626.73

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Solution

The fourth proportional to 98,893.18, 136,472.75 and 58,626.73 is: 80,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,893.18 : 136,472.75 = 58,626.73 : x
  2. Step 2: Convert to fraction form
    98,893.18/136,472.75 = 58,626.73/x
  3. Step 3: Cross multiply
    98,893.18x = 136,472.75 × 58,626.73
  4. Step 4: Simplify right side
    98,893.18x = 8,000,951,066.61
  5. Step 5: Solve for x
    x = 8,000,951,066.61/98,893.18
  6. Step 6: Final answer
    x = 80,904.98

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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.