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Finding the Fourth Proportional to 272,061.52, 375,402 and 157,297.48

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Solution

The fourth proportional to 272,061.52, 375,402 and 157,297.48 is: 217,045.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,061.52 : 375,402 = 157,297.48 : x
  2. Step 2: Convert to fraction form
    272,061.52/375,402 = 157,297.48/x
  3. Step 3: Cross multiply
    272,061.52x = 375,402 × 157,297.48
  4. Step 4: Simplify right side
    272,061.52x = 59,049,788,586.96
  5. Step 5: Solve for x
    x = 59,049,788,586.96/272,061.52
  6. Step 6: Final answer
    x = 217,045.72

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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.