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Finding the Fourth Proportional to 117,597.60, 162,281.94 and 63,881.40

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Solution

The fourth proportional to 117,597.60, 162,281.94 and 63,881.40 is: 88,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,597.60 : 162,281.94 = 63,881.40 : x
  2. Step 2: Convert to fraction form
    117,597.60/162,281.94 = 63,881.40/x
  3. Step 3: Cross multiply
    117,597.60x = 162,281.94 × 63,881.40
  4. Step 4: Simplify right side
    117,597.60x = 10,366,797,521.92
  5. Step 5: Solve for x
    x = 10,366,797,521.92/117,597.60
  6. Step 6: Final answer
    x = 88,154.84

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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.