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Finding the Fourth Proportional to 144,417.20, 216,042.60 and 124,912.40

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Solution

The fourth proportional to 144,417.20, 216,042.60 and 124,912.40 is: 186,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,417.20 : 216,042.60 = 124,912.40 : x
  2. Step 2: Convert to fraction form
    144,417.20/216,042.60 = 124,912.40/x
  3. Step 3: Cross multiply
    144,417.20x = 216,042.60 × 124,912.40
  4. Step 4: Simplify right side
    144,417.20x = 26,986,399,668.24
  5. Step 5: Solve for x
    x = 26,986,399,668.24/144,417.20
  6. Step 6: Final answer
    x = 186,864.17

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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.