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Finding the Fourth Proportional to 225,963.47, 338,943.72 and 57,482.36

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Solution

The fourth proportional to 225,963.47, 338,943.72 and 57,482.36 is: 86,223.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,963.47 : 338,943.72 = 57,482.36 : x
  2. Step 2: Convert to fraction form
    225,963.47/338,943.72 = 57,482.36/x
  3. Step 3: Cross multiply
    225,963.47x = 338,943.72 × 57,482.36
  4. Step 4: Simplify right side
    225,963.47x = 19,483,283,238.06
  5. Step 5: Solve for x
    x = 19,483,283,238.06/225,963.47
  6. Step 6: Final answer
    x = 86,223.16

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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.