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Finding the Fourth Proportional to 134,007.68, 201,040.68 and 40,511

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Solution

The fourth proportional to 134,007.68, 201,040.68 and 40,511 is: 60,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,007.68 : 201,040.68 = 40,511 : x
  2. Step 2: Convert to fraction form
    134,007.68/201,040.68 = 40,511/x
  3. Step 3: Cross multiply
    134,007.68x = 201,040.68 × 40,511
  4. Step 4: Simplify right side
    134,007.68x = 8,144,358,987.48
  5. Step 5: Solve for x
    x = 8,144,358,987.48/134,007.68
  6. Step 6: Final answer
    x = 60,775.32

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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.