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Finding the Fourth Proportional to 162,004.80, 243,007.20 and 159,380.40

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Solution

The fourth proportional to 162,004.80, 243,007.20 and 159,380.40 is: 239,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,004.80 : 243,007.20 = 159,380.40 : x
  2. Step 2: Convert to fraction form
    162,004.80/243,007.20 = 159,380.40/x
  3. Step 3: Cross multiply
    162,004.80x = 243,007.20 × 159,380.40
  4. Step 4: Simplify right side
    162,004.80x = 38,730,584,738.88
  5. Step 5: Solve for x
    x = 38,730,584,738.88/162,004.80
  6. Step 6: Final answer
    x = 239,070.60

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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.