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Finding the Fourth Proportional to 416,923.88, 625,330.53 and 117,428.00

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Solution

The fourth proportional to 416,923.88, 625,330.53 and 117,428.00 is: 176,126.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,923.88 : 625,330.53 = 117,428.00 : x
  2. Step 2: Convert to fraction form
    416,923.88/625,330.53 = 117,428.00/x
  3. Step 3: Cross multiply
    416,923.88x = 625,330.53 × 117,428.00
  4. Step 4: Simplify right side
    416,923.88x = 73,431,310,350.19
  5. Step 5: Solve for x
    x = 73,431,310,350.19/416,923.88
  6. Step 6: Final answer
    x = 176,126.42

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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.