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Finding the Fourth Proportional to 124,472.56, 186,741.60 and 65,292.40

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Solution

The fourth proportional to 124,472.56, 186,741.60 and 65,292.40 is: 97,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,472.56 : 186,741.60 = 65,292.40 : x
  2. Step 2: Convert to fraction form
    124,472.56/186,741.60 = 65,292.40/x
  3. Step 3: Cross multiply
    124,472.56x = 186,741.60 × 65,292.40
  4. Step 4: Simplify right side
    124,472.56x = 12,192,807,243.84
  5. Step 5: Solve for x
    x = 12,192,807,243.84/124,472.56
  6. Step 6: Final answer
    x = 97,955.78

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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.