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Finding the Fourth Proportional to 224,019.20, 336,028.80 and 57,807.20

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Solution

The fourth proportional to 224,019.20, 336,028.80 and 57,807.20 is: 86,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,019.20 : 336,028.80 = 57,807.20 : x
  2. Step 2: Convert to fraction form
    224,019.20/336,028.80 = 57,807.20/x
  3. Step 3: Cross multiply
    224,019.20x = 336,028.80 × 57,807.20
  4. Step 4: Simplify right side
    224,019.20x = 19,424,884,047.36
  5. Step 5: Solve for x
    x = 19,424,884,047.36/224,019.20
  6. Step 6: Final answer
    x = 86,710.80

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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.