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Finding the Fourth Proportional to 228,053.70, 342,080.55 and 217,167.30

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Solution

The fourth proportional to 228,053.70, 342,080.55 and 217,167.30 is: 325,750.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,053.70 : 342,080.55 = 217,167.30 : x
  2. Step 2: Convert to fraction form
    228,053.70/342,080.55 = 217,167.30/x
  3. Step 3: Cross multiply
    228,053.70x = 342,080.55 × 217,167.30
  4. Step 4: Simplify right side
    228,053.70x = 74,288,709,426.02
  5. Step 5: Solve for x
    x = 74,288,709,426.02/228,053.70
  6. Step 6: Final answer
    x = 325,750.95

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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.