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Finding the Fourth Proportional to 158,875.60, 238,486.20 and 88,891.60

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Solution

The fourth proportional to 158,875.60, 238,486.20 and 88,891.60 is: 133,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,875.60 : 238,486.20 = 88,891.60 : x
  2. Step 2: Convert to fraction form
    158,875.60/238,486.20 = 88,891.60/x
  3. Step 3: Cross multiply
    158,875.60x = 238,486.20 × 88,891.60
  4. Step 4: Simplify right side
    158,875.60x = 21,199,419,895.92
  5. Step 5: Solve for x
    x = 21,199,419,895.92/158,875.60
  6. Step 6: Final answer
    x = 133,434.08

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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.