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Finding the Fourth Proportional to 191,860.40, 287,832.10 and 73,531.82

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Solution

The fourth proportional to 191,860.40, 287,832.10 and 73,531.82 is: 110,313.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,860.40 : 287,832.10 = 73,531.82 : x
  2. Step 2: Convert to fraction form
    191,860.40/287,832.10 = 73,531.82/x
  3. Step 3: Cross multiply
    191,860.40x = 287,832.10 × 73,531.82
  4. Step 4: Simplify right side
    191,860.40x = 21,164,818,167.42
  5. Step 5: Solve for x
    x = 21,164,818,167.42/191,860.40
  6. Step 6: Final answer
    x = 110,313.64

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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.