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Finding the Fourth Proportional to 191,632.59, 287,645.04 and 158,246.28

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Solution

The fourth proportional to 191,632.59, 287,645.04 and 158,246.28 is: 237,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,632.59 : 287,645.04 = 158,246.28 : x
  2. Step 2: Convert to fraction form
    191,632.59/287,645.04 = 158,246.28/x
  3. Step 3: Cross multiply
    191,632.59x = 287,645.04 × 158,246.28
  4. Step 4: Simplify right side
    191,632.59x = 45,518,757,540.45
  5. Step 5: Solve for x
    x = 45,518,757,540.45/191,632.59
  6. Step 6: Final answer
    x = 237,531.40

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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.