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Finding the Fourth Proportional to 228,983.60, 343,507.80 and 71,195.60

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Solution

The fourth proportional to 228,983.60, 343,507.80 and 71,195.60 is: 106,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,983.60 : 343,507.80 = 71,195.60 : x
  2. Step 2: Convert to fraction form
    228,983.60/343,507.80 = 71,195.60/x
  3. Step 3: Cross multiply
    228,983.60x = 343,507.80 × 71,195.60
  4. Step 4: Simplify right side
    228,983.60x = 24,456,243,925.68
  5. Step 5: Solve for x
    x = 24,456,243,925.68/228,983.60
  6. Step 6: Final answer
    x = 106,803.47

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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.