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Finding the Fourth Proportional to 105,472.33, 158,191.48 and 38,943.79

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Solution

The fourth proportional to 105,472.33, 158,191.48 and 38,943.79 is: 58,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,472.33 : 158,191.48 = 38,943.79 : x
  2. Step 2: Convert to fraction form
    105,472.33/158,191.48 = 38,943.79/x
  3. Step 3: Cross multiply
    105,472.33x = 158,191.48 × 38,943.79
  4. Step 4: Simplify right side
    105,472.33x = 6,160,575,430.11
  5. Step 5: Solve for x
    x = 6,160,575,430.11/105,472.33
  6. Step 6: Final answer
    x = 58,409.40

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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.