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Finding the Fourth Proportional to 316,502.72, 474,795.77 and 103,195.73

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Solution

The fourth proportional to 316,502.72, 474,795.77 and 103,195.73 is: 154,807.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,502.72 : 474,795.77 = 103,195.73 : x
  2. Step 2: Convert to fraction form
    316,502.72/474,795.77 = 103,195.73/x
  3. Step 3: Cross multiply
    316,502.72x = 474,795.77 × 103,195.73
  4. Step 4: Simplify right side
    316,502.72x = 48,996,896,757.07
  5. Step 5: Solve for x
    x = 48,996,896,757.07/316,502.72
  6. Step 6: Final answer
    x = 154,807.19

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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.