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Finding the Fourth Proportional to 249,725.20, 374,134.20 and 144,230.80

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Solution

The fourth proportional to 249,725.20, 374,134.20 and 144,230.80 is: 216,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,725.20 : 374,134.20 = 144,230.80 : x
  2. Step 2: Convert to fraction form
    249,725.20/374,134.20 = 144,230.80/x
  3. Step 3: Cross multiply
    249,725.20x = 374,134.20 × 144,230.80
  4. Step 4: Simplify right side
    249,725.20x = 53,961,674,973.36
  5. Step 5: Solve for x
    x = 53,961,674,973.36/249,725.20
  6. Step 6: Final answer
    x = 216,084.22

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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.