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Finding the Fourth Proportional to 218,197.02, 301,116 and 127,560.72

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Solution

The fourth proportional to 218,197.02, 301,116 and 127,560.72 is: 176,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,197.02 : 301,116 = 127,560.72 : x
  2. Step 2: Convert to fraction form
    218,197.02/301,116 = 127,560.72/x
  3. Step 3: Cross multiply
    218,197.02x = 301,116 × 127,560.72
  4. Step 4: Simplify right side
    218,197.02x = 38,410,573,763.52
  5. Step 5: Solve for x
    x = 38,410,573,763.52/218,197.02
  6. Step 6: Final answer
    x = 176,036.20

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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.