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Finding the Fourth Proportional to 162,076.80, 243,115.20 and 102,590.40

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Solution

The fourth proportional to 162,076.80, 243,115.20 and 102,590.40 is: 153,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,076.80 : 243,115.20 = 102,590.40 : x
  2. Step 2: Convert to fraction form
    162,076.80/243,115.20 = 102,590.40/x
  3. Step 3: Cross multiply
    162,076.80x = 243,115.20 × 102,590.40
  4. Step 4: Simplify right side
    162,076.80x = 24,941,285,614.08
  5. Step 5: Solve for x
    x = 24,941,285,614.08/162,076.80
  6. Step 6: Final answer
    x = 153,885.60

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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.