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Finding the Fourth Proportional to 144,438.39, 216,708.87 and 64,469.07

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Solution

The fourth proportional to 144,438.39, 216,708.87 and 64,469.07 is: 96,726.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,438.39 : 216,708.87 = 64,469.07 : x
  2. Step 2: Convert to fraction form
    144,438.39/216,708.87 = 64,469.07/x
  3. Step 3: Cross multiply
    144,438.39x = 216,708.87 × 64,469.07
  4. Step 4: Simplify right side
    144,438.39x = 13,971,019,309.65
  5. Step 5: Solve for x
    x = 13,971,019,309.65/144,438.39
  6. Step 6: Final answer
    x = 96,726.50

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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.