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Finding the Fourth Proportional to 124,654.62, 186,870.78 and 45,750.54

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Solution

The fourth proportional to 124,654.62, 186,870.78 and 45,750.54 is: 68,585.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654.62 : 186,870.78 = 45,750.54 : x
  2. Step 2: Convert to fraction form
    124,654.62/186,870.78 = 45,750.54/x
  3. Step 3: Cross multiply
    124,654.62x = 186,870.78 × 45,750.54
  4. Step 4: Simplify right side
    124,654.62x = 8,549,439,095.22
  5. Step 5: Solve for x
    x = 8,549,439,095.22/124,654.62
  6. Step 6: Final answer
    x = 68,585.02

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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.