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Finding the Fourth Proportional to 123,343.40, 185,015.10 and 88,351.40

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Solution

The fourth proportional to 123,343.40, 185,015.10 and 88,351.40 is: 132,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,343.40 : 185,015.10 = 88,351.40 : x
  2. Step 2: Convert to fraction form
    123,343.40/185,015.10 = 88,351.40/x
  3. Step 3: Cross multiply
    123,343.40x = 185,015.10 × 88,351.40
  4. Step 4: Simplify right side
    123,343.40x = 16,346,343,106.14
  5. Step 5: Solve for x
    x = 16,346,343,106.14/123,343.40
  6. Step 6: Final answer
    x = 132,527.10

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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.