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Finding the Fourth Proportional to 117,673.80, 162,389.88 and 63,958.83

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Solution

The fourth proportional to 117,673.80, 162,389.88 and 63,958.83 is: 88,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,673.80 : 162,389.88 = 63,958.83 : x
  2. Step 2: Convert to fraction form
    117,673.80/162,389.88 = 63,958.83/x
  3. Step 3: Cross multiply
    117,673.80x = 162,389.88 × 63,958.83
  4. Step 4: Simplify right side
    117,673.80x = 10,386,266,728.64
  5. Step 5: Solve for x
    x = 10,386,266,728.64/117,673.80
  6. Step 6: Final answer
    x = 88,263.20

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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.