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Finding the Fourth Proportional to 239,398.65, 358,792.47 and 127,132.65

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Solution

The fourth proportional to 239,398.65, 358,792.47 and 127,132.65 is: 190,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,398.65 : 358,792.47 = 127,132.65 : x
  2. Step 2: Convert to fraction form
    239,398.65/358,792.47 = 127,132.65/x
  3. Step 3: Cross multiply
    239,398.65x = 358,792.47 × 127,132.65
  4. Step 4: Simplify right side
    239,398.65x = 45,614,237,511.15
  5. Step 5: Solve for x
    x = 45,614,237,511.15/239,398.65
  6. Step 6: Final answer
    x = 190,536.74

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1.5x scale

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.