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Finding the Fourth Proportional to 124,480.22, 186,720.02 and 53,356.74

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Solution

The fourth proportional to 124,480.22, 186,720.02 and 53,356.74 is: 80,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,480.22 : 186,720.02 = 53,356.74 : x
  2. Step 2: Convert to fraction form
    124,480.22/186,720.02 = 53,356.74/x
  3. Step 3: Cross multiply
    124,480.22x = 186,720.02 × 53,356.74
  4. Step 4: Simplify right side
    124,480.22x = 9,962,771,559.93
  5. Step 5: Solve for x
    x = 9,962,771,559.93/124,480.22
  6. Step 6: Final answer
    x = 80,034.98

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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.