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Finding the Fourth Proportional to 96,470.40, 144,619.20 and 63,206.40

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Solution

The fourth proportional to 96,470.40, 144,619.20 and 63,206.40 is: 94,752.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,470.40 : 144,619.20 = 63,206.40 : x
  2. Step 2: Convert to fraction form
    96,470.40/144,619.20 = 63,206.40/x
  3. Step 3: Cross multiply
    96,470.40x = 144,619.20 × 63,206.40
  4. Step 4: Simplify right side
    96,470.40x = 9,140,859,002.88
  5. Step 5: Solve for x
    x = 9,140,859,002.88/96,470.40
  6. Step 6: Final answer
    x = 94,752.99

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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.