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Finding the Fourth Proportional to 128,298.38, 192,399.71 and 44,034.63

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Solution

The fourth proportional to 128,298.38, 192,399.71 and 44,034.63 is: 66,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,298.38 : 192,399.71 = 44,034.63 : x
  2. Step 2: Convert to fraction form
    128,298.38/192,399.71 = 44,034.63/x
  3. Step 3: Cross multiply
    128,298.38x = 192,399.71 × 44,034.63
  4. Step 4: Simplify right side
    128,298.38x = 8,472,249,821.78
  5. Step 5: Solve for x
    x = 8,472,249,821.78/128,298.38
  6. Step 6: Final answer
    x = 66,035.52

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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.