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Finding the Fourth Proportional to 144,175.24, 216,309.12 and 69,300.80

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Solution

The fourth proportional to 144,175.24, 216,309.12 and 69,300.80 is: 103,973.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,175.24 : 216,309.12 = 69,300.80 : x
  2. Step 2: Convert to fraction form
    144,175.24/216,309.12 = 69,300.80/x
  3. Step 3: Cross multiply
    144,175.24x = 216,309.12 × 69,300.80
  4. Step 4: Simplify right side
    144,175.24x = 14,990,395,063.30
  5. Step 5: Solve for x
    x = 14,990,395,063.30/144,175.24
  6. Step 6: Final answer
    x = 103,973.44

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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.