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Finding the Fourth Proportional to 356,768.29, 535,079.82 and 132,075.31

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Solution

The fourth proportional to 356,768.29, 535,079.82 and 132,075.31 is: 198,086.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,768.29 : 535,079.82 = 132,075.31 : x
  2. Step 2: Convert to fraction form
    356,768.29/535,079.82 = 132,075.31/x
  3. Step 3: Cross multiply
    356,768.29x = 535,079.82 × 132,075.31
  4. Step 4: Simplify right side
    356,768.29x = 70,670,832,440.87
  5. Step 5: Solve for x
    x = 70,670,832,440.87/356,768.29
  6. Step 6: Final answer
    x = 198,086.08

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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.