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Finding the Fourth Proportional to 79,166.16, 109,248.48 and 43,355.88

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Solution

The fourth proportional to 79,166.16, 109,248.48 and 43,355.88 is: 59,830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,166.16 : 109,248.48 = 43,355.88 : x
  2. Step 2: Convert to fraction form
    79,166.16/109,248.48 = 43,355.88/x
  3. Step 3: Cross multiply
    79,166.16x = 109,248.48 × 43,355.88
  4. Step 4: Simplify right side
    79,166.16x = 4,736,563,989.06
  5. Step 5: Solve for x
    x = 4,736,563,989.06/79,166.16
  6. Step 6: Final answer
    x = 59,830.66

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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.