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Finding the Fourth Proportional to 478,148.27, 717,317.06 and 136,594.65

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Solution

The fourth proportional to 478,148.27, 717,317.06 and 136,594.65 is: 204,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,148.27 : 717,317.06 = 136,594.65 : x
  2. Step 2: Convert to fraction form
    478,148.27/717,317.06 = 136,594.65/x
  3. Step 3: Cross multiply
    478,148.27x = 717,317.06 × 136,594.65
  4. Step 4: Simplify right side
    478,148.27x = 97,981,669,088.50
  5. Step 5: Solve for x
    x = 97,981,669,088.50/478,148.27
  6. Step 6: Final answer
    x = 204,919.01

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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.