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Finding the Fourth Proportional to 88,769.72, 122,503.14 and 48,484.64

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Solution

The fourth proportional to 88,769.72, 122,503.14 and 48,484.64 is: 66,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,769.72 : 122,503.14 = 48,484.64 : x
  2. Step 2: Convert to fraction form
    88,769.72/122,503.14 = 48,484.64/x
  3. Step 3: Cross multiply
    88,769.72x = 122,503.14 × 48,484.64
  4. Step 4: Simplify right side
    88,769.72x = 5,939,520,641.77
  5. Step 5: Solve for x
    x = 5,939,520,641.77/88,769.72
  6. Step 6: Final answer
    x = 66,909.31

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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.