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Finding the Fourth Proportional to 144,614.20, 216,953.70 and 55,859.80

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Solution

The fourth proportional to 144,614.20, 216,953.70 and 55,859.80 is: 83,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,614.20 : 216,953.70 = 55,859.80 : x
  2. Step 2: Convert to fraction form
    144,614.20/216,953.70 = 55,859.80/x
  3. Step 3: Cross multiply
    144,614.20x = 216,953.70 × 55,859.80
  4. Step 4: Simplify right side
    144,614.20x = 12,118,990,291.26
  5. Step 5: Solve for x
    x = 12,118,990,291.26/144,614.20
  6. Step 6: Final answer
    x = 83,802.22

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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.