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Finding the Fourth Proportional to 356,967.36, 535,278.66 and 207,245.34

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Solution

The fourth proportional to 356,967.36, 535,278.66 and 207,245.34 is: 310,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,967.36 : 535,278.66 = 207,245.34 : x
  2. Step 2: Convert to fraction form
    356,967.36/535,278.66 = 207,245.34/x
  3. Step 3: Cross multiply
    356,967.36x = 535,278.66 × 207,245.34
  4. Step 4: Simplify right side
    356,967.36x = 110,934,007,886.44
  5. Step 5: Solve for x
    x = 110,934,007,886.44/356,967.36
  6. Step 6: Final answer
    x = 310,767.93

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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.