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Finding the Fourth Proportional to 226,311.60, 312,310.08 and 124,343.64

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Solution

The fourth proportional to 226,311.60, 312,310.08 and 124,343.64 is: 171,594.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,311.60 : 312,310.08 = 124,343.64 : x
  2. Step 2: Convert to fraction form
    226,311.60/312,310.08 = 124,343.64/x
  3. Step 3: Cross multiply
    226,311.60x = 312,310.08 × 124,343.64
  4. Step 4: Simplify right side
    226,311.60x = 38,833,772,155.89
  5. Step 5: Solve for x
    x = 38,833,772,155.89/226,311.60
  6. Step 6: Final answer
    x = 171,594.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.