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Finding the Fourth Proportional to 79,202.32, 109,298.88 and 43,392.28

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Solution

The fourth proportional to 79,202.32, 109,298.88 and 43,392.28 is: 59,881.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,202.32 : 109,298.88 = 43,392.28 : x
  2. Step 2: Convert to fraction form
    79,202.32/109,298.88 = 43,392.28/x
  3. Step 3: Cross multiply
    79,202.32x = 109,298.88 × 43,392.28
  4. Step 4: Simplify right side
    79,202.32x = 4,742,727,604.65
  5. Step 5: Solve for x
    x = 4,742,727,604.65/79,202.32
  6. Step 6: Final answer
    x = 59,881.17

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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.