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Finding the Fourth Proportional to 100,100.88, 138,117.30 and 59,808.60

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Solution

The fourth proportional to 100,100.88, 138,117.30 and 59,808.60 is: 82,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,100.88 : 138,117.30 = 59,808.60 : x
  2. Step 2: Convert to fraction form
    100,100.88/138,117.30 = 59,808.60/x
  3. Step 3: Cross multiply
    100,100.88x = 138,117.30 × 59,808.60
  4. Step 4: Simplify right side
    100,100.88x = 8,260,602,348.78
  5. Step 5: Solve for x
    x = 8,260,602,348.78/100,100.88
  6. Step 6: Final answer
    x = 82,522.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.