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Finding the Fourth Proportional to 239,151.66, 358,678.53 and 89,364.30

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Solution

The fourth proportional to 239,151.66, 358,678.53 and 89,364.30 is: 134,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,151.66 : 358,678.53 = 89,364.30 : x
  2. Step 2: Convert to fraction form
    239,151.66/358,678.53 = 89,364.30/x
  3. Step 3: Cross multiply
    239,151.66x = 358,678.53 × 89,364.30
  4. Step 4: Simplify right side
    239,151.66x = 32,053,055,758.48
  5. Step 5: Solve for x
    x = 32,053,055,758.48/239,151.66
  6. Step 6: Final answer
    x = 134,028.16

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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.