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Finding the Fourth Proportional to 105,306.93, 157,976.82 and 63,177.12

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Solution

The fourth proportional to 105,306.93, 157,976.82 and 63,177.12 is: 94,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,306.93 : 157,976.82 = 63,177.12 : x
  2. Step 2: Convert to fraction form
    105,306.93/157,976.82 = 63,177.12/x
  3. Step 3: Cross multiply
    105,306.93x = 157,976.82 × 63,177.12
  4. Step 4: Simplify right side
    105,306.93x = 9,980,520,514.36
  5. Step 5: Solve for x
    x = 9,980,520,514.36/105,306.93
  6. Step 6: Final answer
    x = 94,775.53

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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.