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Finding the Fourth Proportional to 217,159.68, 325,756.80 and 92,501.76

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Solution

The fourth proportional to 217,159.68, 325,756.80 and 92,501.76 is: 138,760.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,159.68 : 325,756.80 = 92,501.76 : x
  2. Step 2: Convert to fraction form
    217,159.68/325,756.80 = 92,501.76/x
  3. Step 3: Cross multiply
    217,159.68x = 325,756.80 × 92,501.76
  4. Step 4: Simplify right side
    217,159.68x = 30,133,077,331.97
  5. Step 5: Solve for x
    x = 30,133,077,331.97/217,159.68
  6. Step 6: Final answer
    x = 138,760.00

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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.