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Finding the Fourth Proportional to 124,705.96, 186,886.52 and 108,024.64

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Solution

The fourth proportional to 124,705.96, 186,886.52 and 108,024.64 is: 161,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,705.96 : 186,886.52 = 108,024.64 : x
  2. Step 2: Convert to fraction form
    124,705.96/186,886.52 = 108,024.64/x
  3. Step 3: Cross multiply
    124,705.96x = 186,886.52 × 108,024.64
  4. Step 4: Simplify right side
    124,705.96x = 20,188,349,043.85
  5. Step 5: Solve for x
    x = 20,188,349,043.85/124,705.96
  6. Step 6: Final answer
    x = 161,887.60

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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.