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Finding the Fourth Proportional to 162,496.80, 243,745.20 and 141,760.80

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Solution

The fourth proportional to 162,496.80, 243,745.20 and 141,760.80 is: 212,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,496.80 : 243,745.20 = 141,760.80 : x
  2. Step 2: Convert to fraction form
    162,496.80/243,745.20 = 141,760.80/x
  3. Step 3: Cross multiply
    162,496.80x = 243,745.20 × 141,760.80
  4. Step 4: Simplify right side
    162,496.80x = 34,553,514,548.16
  5. Step 5: Solve for x
    x = 34,553,514,548.16/162,496.80
  6. Step 6: Final answer
    x = 212,641.20

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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.