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Finding the Fourth Proportional to 316,152.72, 474,287.49 and 100,065.83

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Solution

The fourth proportional to 316,152.72, 474,287.49 and 100,065.83 is: 150,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,152.72 : 474,287.49 = 100,065.83 : x
  2. Step 2: Convert to fraction form
    316,152.72/474,287.49 = 100,065.83/x
  3. Step 3: Cross multiply
    316,152.72x = 474,287.49 × 100,065.83
  4. Step 4: Simplify right side
    316,152.72x = 47,459,968,974.03
  5. Step 5: Solve for x
    x = 47,459,968,974.03/316,152.72
  6. Step 6: Final answer
    x = 150,117.22

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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.