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Finding the Fourth Proportional to 124,561.14, 186,834.03 and 40,319.46

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Solution

The fourth proportional to 124,561.14, 186,834.03 and 40,319.46 is: 60,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,561.14 : 186,834.03 = 40,319.46 : x
  2. Step 2: Convert to fraction form
    124,561.14/186,834.03 = 40,319.46/x
  3. Step 3: Cross multiply
    124,561.14x = 186,834.03 × 40,319.46
  4. Step 4: Simplify right side
    124,561.14x = 7,533,047,199.22
  5. Step 5: Solve for x
    x = 7,533,047,199.22/124,561.14
  6. Step 6: Final answer
    x = 60,476.70

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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.