Home / 117,576.12-176,309.28-42,686.76

Finding the Fourth Proportional to 117,576.12, 176,309.28 and 42,686.76

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Solution

The fourth proportional to 117,576.12, 176,309.28 and 42,686.76 is: 64,010.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,576.12 : 176,309.28 = 42,686.76 : x
  2. Step 2: Convert to fraction form
    117,576.12/176,309.28 = 42,686.76/x
  3. Step 3: Cross multiply
    117,576.12x = 176,309.28 × 42,686.76
  4. Step 4: Simplify right side
    117,576.12x = 7,526,071,921.13
  5. Step 5: Solve for x
    x = 7,526,071,921.13/117,576.12
  6. Step 6: Final answer
    x = 64,010.21

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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.