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Finding the Fourth Proportional to 124,539.79, 186,719.16 and 49,637.47

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Solution

The fourth proportional to 124,539.79, 186,719.16 and 49,637.47 is: 74,420.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,539.79 : 186,719.16 = 49,637.47 : x
  2. Step 2: Convert to fraction form
    124,539.79/186,719.16 = 49,637.47/x
  3. Step 3: Cross multiply
    124,539.79x = 186,719.16 × 49,637.47
  4. Step 4: Simplify right side
    124,539.79x = 9,268,266,702.93
  5. Step 5: Solve for x
    x = 9,268,266,702.93/124,539.79
  6. Step 6: Final answer
    x = 74,420.12

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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.