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Finding the Fourth Proportional to 199,393.60, 275,007.58 and 127,780.28

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Solution

The fourth proportional to 199,393.60, 275,007.58 and 127,780.28 is: 176,237.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,393.60 : 275,007.58 = 127,780.28 : x
  2. Step 2: Convert to fraction form
    199,393.60/275,007.58 = 127,780.28/x
  3. Step 3: Cross multiply
    199,393.60x = 275,007.58 × 127,780.28
  4. Step 4: Simplify right side
    199,393.60x = 35,140,545,574.52
  5. Step 5: Solve for x
    x = 35,140,545,574.52/199,393.60
  6. Step 6: Final answer
    x = 176,237.08

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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.