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Finding the Fourth Proportional to 235,671.02, 353,561.86 and 77,899.46

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Solution

The fourth proportional to 235,671.02, 353,561.86 and 77,899.46 is: 116,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,671.02 : 353,561.86 = 77,899.46 : x
  2. Step 2: Convert to fraction form
    235,671.02/353,561.86 = 77,899.46/x
  3. Step 3: Cross multiply
    235,671.02x = 353,561.86 × 77,899.46
  4. Step 4: Simplify right side
    235,671.02x = 27,542,277,970.60
  5. Step 5: Solve for x
    x = 27,542,277,970.60/235,671.02
  6. Step 6: Final answer
    x = 116,867.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.