Home / 191,560.17-287,338.65-71,647.36

Finding the Fourth Proportional to 191,560.17, 287,338.65 and 71,647.36

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Solution

The fourth proportional to 191,560.17, 287,338.65 and 71,647.36 is: 107,470.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,560.17 : 287,338.65 = 71,647.36 : x
  2. Step 2: Convert to fraction form
    191,560.17/287,338.65 = 71,647.36/x
  3. Step 3: Cross multiply
    191,560.17x = 287,338.65 × 71,647.36
  4. Step 4: Simplify right side
    191,560.17x = 20,587,055,698.46
  5. Step 5: Solve for x
    x = 20,587,055,698.46/191,560.17
  6. Step 6: Final answer
    x = 107,470.44

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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.