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Finding the Fourth Proportional to 78,883.33, 108,858.45 and 43,073.32

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Solution

The fourth proportional to 78,883.33, 108,858.45 and 43,073.32 is: 59,440.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,883.33 : 108,858.45 = 43,073.32 : x
  2. Step 2: Convert to fraction form
    78,883.33/108,858.45 = 43,073.32/x
  3. Step 3: Cross multiply
    78,883.33x = 108,858.45 × 43,073.32
  4. Step 4: Simplify right side
    78,883.33x = 4,688,894,851.55
  5. Step 5: Solve for x
    x = 4,688,894,851.55/78,883.33
  6. Step 6: Final answer
    x = 59,440.88

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1.5x scale

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.