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Finding the Fourth Proportional to 124,360.68, 186,539.64 and 74,454.72

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Solution

The fourth proportional to 124,360.68, 186,539.64 and 74,454.72 is: 111,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,360.68 : 186,539.64 = 74,454.72 : x
  2. Step 2: Convert to fraction form
    124,360.68/186,539.64 = 74,454.72/x
  3. Step 3: Cross multiply
    124,360.68x = 186,539.64 × 74,454.72
  4. Step 4: Simplify right side
    124,360.68x = 13,888,756,665.10
  5. Step 5: Solve for x
    x = 13,888,756,665.10/124,360.68
  6. Step 6: Final answer
    x = 111,681.25

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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.