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Finding the Fourth Proportional to 346,761.96, 519,925.66 and 136,155.24

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Solution

The fourth proportional to 346,761.96, 519,925.66 and 136,155.24 is: 204,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,761.96 : 519,925.66 = 136,155.24 : x
  2. Step 2: Convert to fraction form
    346,761.96/519,925.66 = 136,155.24/x
  3. Step 3: Cross multiply
    346,761.96x = 519,925.66 × 136,155.24
  4. Step 4: Simplify right side
    346,761.96x = 70,790,603,019.46
  5. Step 5: Solve for x
    x = 70,790,603,019.46/346,761.96
  6. Step 6: Final answer
    x = 204,147.55

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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.