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Finding the Fourth Proportional to 239,345.70, 359,080.71 and 89,597.76

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Solution

The fourth proportional to 239,345.70, 359,080.71 and 89,597.76 is: 134,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,345.70 : 359,080.71 = 89,597.76 : x
  2. Step 2: Convert to fraction form
    239,345.70/359,080.71 = 89,597.76/x
  3. Step 3: Cross multiply
    239,345.70x = 359,080.71 × 89,597.76
  4. Step 4: Simplify right side
    239,345.70x = 32,172,827,275.21
  5. Step 5: Solve for x
    x = 32,172,827,275.21/239,345.70
  6. Step 6: Final answer
    x = 134,419.91

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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.