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Finding the Fourth Proportional to 185,896.80, 278,456.40 and 102,693.60

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Solution

The fourth proportional to 185,896.80, 278,456.40 and 102,693.60 is: 153,825.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,896.80 : 278,456.40 = 102,693.60 : x
  2. Step 2: Convert to fraction form
    185,896.80/278,456.40 = 102,693.60/x
  3. Step 3: Cross multiply
    185,896.80x = 278,456.40 × 102,693.60
  4. Step 4: Simplify right side
    185,896.80x = 28,595,690,159.04
  5. Step 5: Solve for x
    x = 28,595,690,159.04/185,896.80
  6. Step 6: Final answer
    x = 153,825.62

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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.