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Finding the Fourth Proportional to 222,044.40, 333,412.20 and 128,732.40

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Solution

The fourth proportional to 222,044.40, 333,412.20 and 128,732.40 is: 193,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,044.40 : 333,412.20 = 128,732.40 : x
  2. Step 2: Convert to fraction form
    222,044.40/333,412.20 = 128,732.40/x
  3. Step 3: Cross multiply
    222,044.40x = 333,412.20 × 128,732.40
  4. Step 4: Simplify right side
    222,044.40x = 42,920,952,695.28
  5. Step 5: Solve for x
    x = 42,920,952,695.28/222,044.40
  6. Step 6: Final answer
    x = 193,298.96

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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.