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Finding the Fourth Proportional to 277,686.16, 416,195.36 and 127,719.80

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Solution

The fourth proportional to 277,686.16, 416,195.36 and 127,719.80 is: 191,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,686.16 : 416,195.36 = 127,719.80 : x
  2. Step 2: Convert to fraction form
    277,686.16/416,195.36 = 127,719.80/x
  3. Step 3: Cross multiply
    277,686.16x = 416,195.36 × 127,719.80
  4. Step 4: Simplify right side
    277,686.16x = 53,156,388,140.13
  5. Step 5: Solve for x
    x = 53,156,388,140.13/277,686.16
  6. Step 6: Final answer
    x = 191,426.13

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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.