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Finding the Fourth Proportional to 210,672.16, 290,732.16 and 125,773.36

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Solution

The fourth proportional to 210,672.16, 290,732.16 and 125,773.36 is: 173,569.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,672.16 : 290,732.16 = 125,773.36 : x
  2. Step 2: Convert to fraction form
    210,672.16/290,732.16 = 125,773.36/x
  3. Step 3: Cross multiply
    210,672.16x = 290,732.16 × 125,773.36
  4. Step 4: Simplify right side
    210,672.16x = 36,566,360,623.26
  5. Step 5: Solve for x
    x = 36,566,360,623.26/210,672.16
  6. Step 6: Final answer
    x = 173,569.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.