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Finding the Fourth Proportional to 124,690.59, 186,922.62 and 49,794.75

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Solution

The fourth proportional to 124,690.59, 186,922.62 and 49,794.75 is: 74,646.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,690.59 : 186,922.62 = 49,794.75 : x
  2. Step 2: Convert to fraction form
    124,690.59/186,922.62 = 49,794.75/x
  3. Step 3: Cross multiply
    124,690.59x = 186,922.62 × 49,794.75
  4. Step 4: Simplify right side
    124,690.59x = 9,307,765,132.25
  5. Step 5: Solve for x
    x = 9,307,765,132.25/124,690.59
  6. Step 6: Final answer
    x = 74,646.89

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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.