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Finding the Fourth Proportional to 144,378.71, 216,422.66 and 60,185.48

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Solution

The fourth proportional to 144,378.71, 216,422.66 and 60,185.48 is: 90,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,378.71 : 216,422.66 = 60,185.48 : x
  2. Step 2: Convert to fraction form
    144,378.71/216,422.66 = 60,185.48/x
  3. Step 3: Cross multiply
    144,378.71x = 216,422.66 × 60,185.48
  4. Step 4: Simplify right side
    144,378.71x = 13,025,500,291.94
  5. Step 5: Solve for x
    x = 13,025,500,291.94/144,378.71
  6. Step 6: Final answer
    x = 90,217.60

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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.