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Finding the Fourth Proportional to 88,342.58, 121,911.56 and 48,055.50

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Solution

The fourth proportional to 88,342.58, 121,911.56 and 48,055.50 is: 66,315.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,342.58 : 121,911.56 = 48,055.50 : x
  2. Step 2: Convert to fraction form
    88,342.58/121,911.56 = 48,055.50/x
  3. Step 3: Cross multiply
    88,342.58x = 121,911.56 × 48,055.50
  4. Step 4: Simplify right side
    88,342.58x = 5,858,520,971.58
  5. Step 5: Solve for x
    x = 5,858,520,971.58/88,342.58
  6. Step 6: Final answer
    x = 66,315.94

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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.