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Finding the Fourth Proportional to 166,411.20, 249,616.80 and 157,225.80

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Solution

The fourth proportional to 166,411.20, 249,616.80 and 157,225.80 is: 235,838.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,411.20 : 249,616.80 = 157,225.80 : x
  2. Step 2: Convert to fraction form
    166,411.20/249,616.80 = 157,225.80/x
  3. Step 3: Cross multiply
    166,411.20x = 249,616.80 × 157,225.80
  4. Step 4: Simplify right side
    166,411.20x = 39,246,201,073.44
  5. Step 5: Solve for x
    x = 39,246,201,073.44/166,411.20
  6. Step 6: Final answer
    x = 235,838.70

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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.