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Finding the Fourth Proportional to 356,781.02, 535,260.76 and 251,805.02

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Solution

The fourth proportional to 356,781.02, 535,260.76 and 251,805.02 is: 377,770.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,781.02 : 535,260.76 = 251,805.02 : x
  2. Step 2: Convert to fraction form
    356,781.02/535,260.76 = 251,805.02/x
  3. Step 3: Cross multiply
    356,781.02x = 535,260.76 × 251,805.02
  4. Step 4: Simplify right side
    356,781.02x = 134,781,343,071.20
  5. Step 5: Solve for x
    x = 134,781,343,071.20/356,781.02
  6. Step 6: Final answer
    x = 377,770.50

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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.