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Finding the Fourth Proportional to 58,968.60, 88,307.10 and 39,139.80

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Solution

The fourth proportional to 58,968.60, 88,307.10 and 39,139.80 is: 58,612.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,968.60 : 88,307.10 = 39,139.80 : x
  2. Step 2: Convert to fraction form
    58,968.60/88,307.10 = 39,139.80/x
  3. Step 3: Cross multiply
    58,968.60x = 88,307.10 × 39,139.80
  4. Step 4: Simplify right side
    58,968.60x = 3,456,322,232.58
  5. Step 5: Solve for x
    x = 3,456,322,232.58/58,968.60
  6. Step 6: Final answer
    x = 58,612.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.