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Finding the Fourth Proportional to 185,907.28, 256,552.28 and 105,340.24

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Solution

The fourth proportional to 185,907.28, 256,552.28 and 105,340.24 is: 145,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,907.28 : 256,552.28 = 105,340.24 : x
  2. Step 2: Convert to fraction form
    185,907.28/256,552.28 = 105,340.24/x
  3. Step 3: Cross multiply
    185,907.28x = 256,552.28 × 105,340.24
  4. Step 4: Simplify right side
    185,907.28x = 27,025,278,747.75
  5. Step 5: Solve for x
    x = 27,025,278,747.75/185,907.28
  6. Step 6: Final answer
    x = 145,369.66

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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.