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Finding the Fourth Proportional to 358,508.31, 537,513.39 and 158,719.74

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Solution

The fourth proportional to 358,508.31, 537,513.39 and 158,719.74 is: 237,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,508.31 : 537,513.39 = 158,719.74 : x
  2. Step 2: Convert to fraction form
    358,508.31/537,513.39 = 158,719.74/x
  3. Step 3: Cross multiply
    358,508.31x = 537,513.39 × 158,719.74
  4. Step 4: Simplify right side
    358,508.31x = 85,313,985,507.32
  5. Step 5: Solve for x
    x = 85,313,985,507.32/358,508.31
  6. Step 6: Final answer
    x = 237,969.34

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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.