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Finding the Fourth Proportional to 124,654.56, 186,870.84 and 45,750.48

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Solution

The fourth proportional to 124,654.56, 186,870.84 and 45,750.48 is: 68,584.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654.56 : 186,870.84 = 45,750.48 : x
  2. Step 2: Convert to fraction form
    124,654.56/186,870.84 = 45,750.48/x
  3. Step 3: Cross multiply
    124,654.56x = 186,870.84 × 45,750.48
  4. Step 4: Simplify right side
    124,654.56x = 8,549,430,628.00
  5. Step 5: Solve for x
    x = 8,549,430,628.00/124,654.56
  6. Step 6: Final answer
    x = 68,584.98

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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.