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Finding the Fourth Proportional to 119,117.60, 178,676.40 and 36,000.80

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Solution

The fourth proportional to 119,117.60, 178,676.40 and 36,000.80 is: 54,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,117.60 : 178,676.40 = 36,000.80 : x
  2. Step 2: Convert to fraction form
    119,117.60/178,676.40 = 36,000.80/x
  3. Step 3: Cross multiply
    119,117.60x = 178,676.40 × 36,000.80
  4. Step 4: Simplify right side
    119,117.60x = 6,432,493,341.12
  5. Step 5: Solve for x
    x = 6,432,493,341.12/119,117.60
  6. Step 6: Final answer
    x = 54,001.20

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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.