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Finding the Fourth Proportional to 98,892.93, 136,472.40 and 58,626.48

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Solution

The fourth proportional to 98,892.93, 136,472.40 and 58,626.48 is: 80,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,892.93 : 136,472.40 = 58,626.48 : x
  2. Step 2: Convert to fraction form
    98,892.93/136,472.40 = 58,626.48/x
  3. Step 3: Cross multiply
    98,892.93x = 136,472.40 × 58,626.48
  4. Step 4: Simplify right side
    98,892.93x = 8,000,896,429.15
  5. Step 5: Solve for x
    x = 8,000,896,429.15/98,892.93
  6. Step 6: Final answer
    x = 80,904.64

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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.