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Finding the Fourth Proportional to 117,879.60, 176,862.03 and 72,848.25

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Solution

The fourth proportional to 117,879.60, 176,862.03 and 72,848.25 is: 109,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,879.60 : 176,862.03 = 72,848.25 : x
  2. Step 2: Convert to fraction form
    117,879.60/176,862.03 = 72,848.25/x
  3. Step 3: Cross multiply
    117,879.60x = 176,862.03 × 72,848.25
  4. Step 4: Simplify right side
    117,879.60x = 12,884,089,376.95
  5. Step 5: Solve for x
    x = 12,884,089,376.95/117,879.60
  6. Step 6: Final answer
    x = 109,298.72

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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.