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Finding the Fourth Proportional to 124,359.68, 186,594.60 and 65,181.28

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Solution

The fourth proportional to 124,359.68, 186,594.60 and 65,181.28 is: 97,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,359.68 : 186,594.60 = 65,181.28 : x
  2. Step 2: Convert to fraction form
    124,359.68/186,594.60 = 65,181.28/x
  3. Step 3: Cross multiply
    124,359.68x = 186,594.60 × 65,181.28
  4. Step 4: Simplify right side
    124,359.68x = 12,162,474,869.09
  5. Step 5: Solve for x
    x = 12,162,474,869.09/124,359.68
  6. Step 6: Final answer
    x = 97,800.79

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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.