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Finding the Fourth Proportional to 96,422.40, 144,763.20 and 61,430.40

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Solution

The fourth proportional to 96,422.40, 144,763.20 and 61,430.40 is: 92,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,422.40 : 144,763.20 = 61,430.40 : x
  2. Step 2: Convert to fraction form
    96,422.40/144,763.20 = 61,430.40/x
  3. Step 3: Cross multiply
    96,422.40x = 144,763.20 × 61,430.40
  4. Step 4: Simplify right side
    96,422.40x = 8,892,861,281.28
  5. Step 5: Solve for x
    x = 8,892,861,281.28/96,422.40
  6. Step 6: Final answer
    x = 92,228.17

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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.