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Finding the Fourth Proportional to 109,765.32, 151,483.14 and 67,318.08

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Solution

The fourth proportional to 109,765.32, 151,483.14 and 67,318.08 is: 92,903.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,765.32 : 151,483.14 = 67,318.08 : x
  2. Step 2: Convert to fraction form
    109,765.32/151,483.14 = 67,318.08/x
  3. Step 3: Cross multiply
    109,765.32x = 151,483.14 × 67,318.08
  4. Step 4: Simplify right side
    109,765.32x = 10,197,554,137.17
  5. Step 5: Solve for x
    x = 10,197,554,137.17/109,765.32
  6. Step 6: Final answer
    x = 92,903.24

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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.