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Finding the Fourth Proportional to 356,945.76, 535,252.50 and 132,297.12

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Solution

The fourth proportional to 356,945.76, 535,252.50 and 132,297.12 is: 198,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,945.76 : 535,252.50 = 132,297.12 : x
  2. Step 2: Convert to fraction form
    356,945.76/535,252.50 = 132,297.12/x
  3. Step 3: Cross multiply
    356,945.76x = 535,252.50 × 132,297.12
  4. Step 4: Simplify right side
    356,945.76x = 70,812,364,222.80
  5. Step 5: Solve for x
    x = 70,812,364,222.80/356,945.76
  6. Step 6: Final answer
    x = 198,384.10

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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.