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Finding the Fourth Proportional to 207,358.96, 311,036.40 and 95,007.30

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Solution

The fourth proportional to 207,358.96, 311,036.40 and 95,007.30 is: 142,510.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,358.96 : 311,036.40 = 95,007.30 : x
  2. Step 2: Convert to fraction form
    207,358.96/311,036.40 = 95,007.30/x
  3. Step 3: Cross multiply
    207,358.96x = 311,036.40 × 95,007.30
  4. Step 4: Simplify right side
    207,358.96x = 29,550,728,565.72
  5. Step 5: Solve for x
    x = 29,550,728,565.72/207,358.96
  6. Step 6: Final answer
    x = 142,510.02

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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.