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Finding the Fourth Proportional to 295,220.60, 442,830.90 and 108,207.80

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Solution

The fourth proportional to 295,220.60, 442,830.90 and 108,207.80 is: 162,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,220.60 : 442,830.90 = 108,207.80 : x
  2. Step 2: Convert to fraction form
    295,220.60/442,830.90 = 108,207.80/x
  3. Step 3: Cross multiply
    295,220.60x = 442,830.90 × 108,207.80
  4. Step 4: Simplify right side
    295,220.60x = 47,917,757,461.02
  5. Step 5: Solve for x
    x = 47,917,757,461.02/295,220.60
  6. Step 6: Final answer
    x = 162,311.70

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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.