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Finding the Fourth Proportional to 69,098.79, 103,143.51 and 59,301.03

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Solution

The fourth proportional to 69,098.79, 103,143.51 and 59,301.03 is: 88,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,098.79 : 103,143.51 = 59,301.03 : x
  2. Step 2: Convert to fraction form
    69,098.79/103,143.51 = 59,301.03/x
  3. Step 3: Cross multiply
    69,098.79x = 103,143.51 × 59,301.03
  4. Step 4: Simplify right side
    69,098.79x = 6,116,516,380.82
  5. Step 5: Solve for x
    x = 6,116,516,380.82/69,098.79
  6. Step 6: Final answer
    x = 88,518.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.