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Finding the Fourth Proportional to 239,702.84, 359,460.80 and 89,861.45

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Solution

The fourth proportional to 239,702.84, 359,460.80 and 89,861.45 is: 134,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,702.84 : 359,460.80 = 89,861.45 : x
  2. Step 2: Convert to fraction form
    239,702.84/359,460.80 = 89,861.45/x
  3. Step 3: Cross multiply
    239,702.84x = 359,460.80 × 89,861.45
  4. Step 4: Simplify right side
    239,702.84x = 32,301,666,459.55
  5. Step 5: Solve for x
    x = 32,301,666,459.55/239,702.84
  6. Step 6: Final answer
    x = 134,757.13

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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.