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Finding the Fourth Proportional to 191,634.59, 287,648.04 and 158,248.28

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Solution

The fourth proportional to 191,634.59, 287,648.04 and 158,248.28 is: 237,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,634.59 : 287,648.04 = 158,248.28 : x
  2. Step 2: Convert to fraction form
    191,634.59/287,648.04 = 158,248.28/x
  3. Step 3: Cross multiply
    191,634.59x = 287,648.04 × 158,248.28
  4. Step 4: Simplify right side
    191,634.59x = 45,519,807,575.37
  5. Step 5: Solve for x
    x = 45,519,807,575.37/191,634.59
  6. Step 6: Final answer
    x = 237,534.40

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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.