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Finding the Fourth Proportional to 375,644.16, 563,347.17 and 122,866.20

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Solution

The fourth proportional to 375,644.16, 563,347.17 and 122,866.20 is: 184,260.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,644.16 : 563,347.17 = 122,866.20 : x
  2. Step 2: Convert to fraction form
    375,644.16/563,347.17 = 122,866.20/x
  3. Step 3: Cross multiply
    375,644.16x = 563,347.17 × 122,866.20
  4. Step 4: Simplify right side
    375,644.16x = 69,216,326,058.65
  5. Step 5: Solve for x
    x = 69,216,326,058.65/375,644.16
  6. Step 6: Final answer
    x = 184,260.35

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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.