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Finding the Fourth Proportional to 261,269.76, 392,079.06 and 95,057.76

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Solution

The fourth proportional to 261,269.76, 392,079.06 and 95,057.76 is: 142,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,269.76 : 392,079.06 = 95,057.76 : x
  2. Step 2: Convert to fraction form
    261,269.76/392,079.06 = 95,057.76/x
  3. Step 3: Cross multiply
    261,269.76x = 392,079.06 × 95,057.76
  4. Step 4: Simplify right side
    261,269.76x = 37,270,157,186.51
  5. Step 5: Solve for x
    x = 37,270,157,186.51/261,269.76
  6. Step 6: Final answer
    x = 142,650.10

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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.