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Finding the Fourth Proportional to 88,790.80, 122,499.42 and 52,484.60

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Solution

The fourth proportional to 88,790.80, 122,499.42 and 52,484.60 is: 72,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,790.80 : 122,499.42 = 52,484.60 : x
  2. Step 2: Convert to fraction form
    88,790.80/122,499.42 = 52,484.60/x
  3. Step 3: Cross multiply
    88,790.80x = 122,499.42 × 52,484.60
  4. Step 4: Simplify right side
    88,790.80x = 6,429,333,058.93
  5. Step 5: Solve for x
    x = 6,429,333,058.93/88,790.80
  6. Step 6: Final answer
    x = 72,409.90

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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.