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Finding the Fourth Proportional to 117,988.65, 162,824.13 and 64,273.50

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Solution

The fourth proportional to 117,988.65, 162,824.13 and 64,273.50 is: 88,697.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,988.65 : 162,824.13 = 64,273.50 : x
  2. Step 2: Convert to fraction form
    117,988.65/162,824.13 = 64,273.50/x
  3. Step 3: Cross multiply
    117,988.65x = 162,824.13 × 64,273.50
  4. Step 4: Simplify right side
    117,988.65x = 10,465,276,719.56
  5. Step 5: Solve for x
    x = 10,465,276,719.56/117,988.65
  6. Step 6: Final answer
    x = 88,697.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.