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Finding the Fourth Proportional to 341,691.40, 512,545.20 and 105,036.13

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Solution

The fourth proportional to 341,691.40, 512,545.20 and 105,036.13 is: 157,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,691.40 : 512,545.20 = 105,036.13 : x
  2. Step 2: Convert to fraction form
    341,691.40/512,545.20 = 105,036.13/x
  3. Step 3: Cross multiply
    341,691.40x = 512,545.20 × 105,036.13
  4. Step 4: Simplify right side
    341,691.40x = 53,835,764,258.08
  5. Step 5: Solve for x
    x = 53,835,764,258.08/341,691.40
  6. Step 6: Final answer
    x = 157,556.68

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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.