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Finding the Fourth Proportional to 124,888.28, 187,283.11 and 49,994.47

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Solution

The fourth proportional to 124,888.28, 187,283.11 and 49,994.47 is: 74,971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,888.28 : 187,283.11 = 49,994.47 : x
  2. Step 2: Convert to fraction form
    124,888.28/187,283.11 = 49,994.47/x
  3. Step 3: Cross multiply
    124,888.28x = 187,283.11 × 49,994.47
  4. Step 4: Simplify right side
    124,888.28x = 9,363,119,824.40
  5. Step 5: Solve for x
    x = 9,363,119,824.40/124,888.28
  6. Step 6: Final answer
    x = 74,971.97

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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.