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Finding the Fourth Proportional to 124,043.20, 186,064.80 and 119,766.40

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Solution

The fourth proportional to 124,043.20, 186,064.80 and 119,766.40 is: 179,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,043.20 : 186,064.80 = 119,766.40 : x
  2. Step 2: Convert to fraction form
    124,043.20/186,064.80 = 119,766.40/x
  3. Step 3: Cross multiply
    124,043.20x = 186,064.80 × 119,766.40
  4. Step 4: Simplify right side
    124,043.20x = 22,284,311,262.72
  5. Step 5: Solve for x
    x = 22,284,311,262.72/124,043.20
  6. Step 6: Final answer
    x = 179,649.60

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1.5x scale

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.