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Finding the Fourth Proportional to 239,706.86, 359,720.81 and 99,465.62

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Solution

The fourth proportional to 239,706.86, 359,720.81 and 99,465.62 is: 149,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,706.86 : 359,720.81 = 99,465.62 : x
  2. Step 2: Convert to fraction form
    239,706.86/359,720.81 = 99,465.62/x
  3. Step 3: Cross multiply
    239,706.86x = 359,720.81 × 99,465.62
  4. Step 4: Simplify right side
    239,706.86x = 35,779,853,393.55
  5. Step 5: Solve for x
    x = 35,779,853,393.55/239,706.86
  6. Step 6: Final answer
    x = 149,265.04

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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.