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Finding the Fourth Proportional to 238,065.30, 357,125.04 and 86,333.87

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Solution

The fourth proportional to 238,065.30, 357,125.04 and 86,333.87 is: 129,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,065.30 : 357,125.04 = 86,333.87 : x
  2. Step 2: Convert to fraction form
    238,065.30/357,125.04 = 86,333.87/x
  3. Step 3: Cross multiply
    238,065.30x = 357,125.04 × 86,333.87
  4. Step 4: Simplify right side
    238,065.30x = 30,831,984,991.48
  5. Step 5: Solve for x
    x = 30,831,984,991.48/238,065.30
  6. Step 6: Final answer
    x = 129,510.62

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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.