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Finding the Fourth Proportional to 134,622.79, 201,866.74 and 75,442.57

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Solution

The fourth proportional to 134,622.79, 201,866.74 and 75,442.57 is: 113,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,622.79 : 201,866.74 = 75,442.57 : x
  2. Step 2: Convert to fraction form
    134,622.79/201,866.74 = 75,442.57/x
  3. Step 3: Cross multiply
    134,622.79x = 201,866.74 × 75,442.57
  4. Step 4: Simplify right side
    134,622.79x = 15,229,345,663.12
  5. Step 5: Solve for x
    x = 15,229,345,663.12/134,622.79
  6. Step 6: Final answer
    x = 113,126.06

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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.