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Finding the Fourth Proportional to 191,561.17, 287,083.42 and 96,858.17

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Solution

The fourth proportional to 191,561.17, 287,083.42 and 96,858.17 is: 145,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,561.17 : 287,083.42 = 96,858.17 : x
  2. Step 2: Convert to fraction form
    191,561.17/287,083.42 = 96,858.17/x
  3. Step 3: Cross multiply
    191,561.17x = 287,083.42 × 96,858.17
  4. Step 4: Simplify right side
    191,561.17x = 27,806,374,698.54
  5. Step 5: Solve for x
    x = 27,806,374,698.54/191,561.17
  6. Step 6: Final answer
    x = 145,156.63

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1.5x scale

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.