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Finding the Fourth Proportional to 124,363.31, 186,526.80 and 61,166.48

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Solution

The fourth proportional to 124,363.31, 186,526.80 and 61,166.48 is: 91,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,363.31 : 186,526.80 = 61,166.48 : x
  2. Step 2: Convert to fraction form
    124,363.31/186,526.80 = 61,166.48/x
  3. Step 3: Cross multiply
    124,363.31x = 186,526.80 × 61,166.48
  4. Step 4: Simplify right side
    124,363.31x = 11,409,186,849.03
  5. Step 5: Solve for x
    x = 11,409,186,849.03/124,363.31
  6. Step 6: Final answer
    x = 91,740.78

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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.