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Finding the Fourth Proportional to 76,118.40, 114,035.31 and 63,718.11

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Solution

The fourth proportional to 76,118.40, 114,035.31 and 63,718.11 is: 95,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,118.40 : 114,035.31 = 63,718.11 : x
  2. Step 2: Convert to fraction form
    76,118.40/114,035.31 = 63,718.11/x
  3. Step 3: Cross multiply
    76,118.40x = 114,035.31 × 63,718.11
  4. Step 4: Simplify right side
    76,118.40x = 7,266,114,426.46
  5. Step 5: Solve for x
    x = 7,266,114,426.46/76,118.40
  6. Step 6: Final answer
    x = 95,458.06

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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.