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Finding the Fourth Proportional to 316,001.85, 473,932.16 and 91,312.22

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Solution

The fourth proportional to 316,001.85, 473,932.16 and 91,312.22 is: 136,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,001.85 : 473,932.16 = 91,312.22 : x
  2. Step 2: Convert to fraction form
    316,001.85/473,932.16 = 91,312.22/x
  3. Step 3: Cross multiply
    316,001.85x = 473,932.16 × 91,312.22
  4. Step 4: Simplify right side
    316,001.85x = 43,275,794,832.77
  5. Step 5: Solve for x
    x = 43,275,794,832.77/316,001.85
  6. Step 6: Final answer
    x = 136,947.92

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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.