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Finding the Fourth Proportional to 356,532.38, 535,008.74 and 132,050.45

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Solution

The fourth proportional to 356,532.38, 535,008.74 and 132,050.45 is: 198,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,532.38 : 535,008.74 = 132,050.45 : x
  2. Step 2: Convert to fraction form
    356,532.38/535,008.74 = 132,050.45/x
  3. Step 3: Cross multiply
    356,532.38x = 535,008.74 × 132,050.45
  4. Step 4: Simplify right side
    356,532.38x = 70,648,141,535.64
  5. Step 5: Solve for x
    x = 70,648,141,535.64/356,532.38
  6. Step 6: Final answer
    x = 198,153.51

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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.