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Finding the Fourth Proportional to 272,038.72, 375,487.84 and 176,540.16

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Solution

The fourth proportional to 272,038.72, 375,487.84 and 176,540.16 is: 243,673.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,038.72 : 375,487.84 = 176,540.16 : x
  2. Step 2: Convert to fraction form
    272,038.72/375,487.84 = 176,540.16/x
  3. Step 3: Cross multiply
    272,038.72x = 375,487.84 × 176,540.16
  4. Step 4: Simplify right side
    272,038.72x = 66,288,683,351.65
  5. Step 5: Solve for x
    x = 66,288,683,351.65/272,038.72
  6. Step 6: Final answer
    x = 243,673.71

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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.