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Finding the Fourth Proportional to 356,247.76, 534,406.76 and 103,530.48

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Solution

The fourth proportional to 356,247.76, 534,406.76 and 103,530.48 is: 155,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,247.76 : 534,406.76 = 103,530.48 : x
  2. Step 2: Convert to fraction form
    356,247.76/534,406.76 = 103,530.48/x
  3. Step 3: Cross multiply
    356,247.76x = 534,406.76 × 103,530.48
  4. Step 4: Simplify right side
    356,247.76x = 55,327,388,378.04
  5. Step 5: Solve for x
    x = 55,327,388,378.04/356,247.76
  6. Step 6: Final answer
    x = 155,305.93

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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.