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Finding the Fourth Proportional to 124,337.84, 186,561.89 and 65,159.44

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Solution

The fourth proportional to 124,337.84, 186,561.89 and 65,159.44 is: 97,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,337.84 : 186,561.89 = 65,159.44 : x
  2. Step 2: Convert to fraction form
    124,337.84/186,561.89 = 65,159.44/x
  3. Step 3: Cross multiply
    124,337.84x = 186,561.89 × 65,159.44
  4. Step 4: Simplify right side
    124,337.84x = 12,156,268,277.74
  5. Step 5: Solve for x
    x = 12,156,268,277.74/124,337.84
  6. Step 6: Final answer
    x = 97,768.05

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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.