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Finding the Fourth Proportional to 61,993.92, 93,110.40 and 53,129.28

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Solution

The fourth proportional to 61,993.92, 93,110.40 and 53,129.28 is: 79,796.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,993.92 : 93,110.40 = 53,129.28 : x
  2. Step 2: Convert to fraction form
    61,993.92/93,110.40 = 53,129.28/x
  3. Step 3: Cross multiply
    61,993.92x = 93,110.40 × 53,129.28
  4. Step 4: Simplify right side
    61,993.92x = 4,946,888,512.51
  5. Step 5: Solve for x
    x = 4,946,888,512.51/61,993.92
  6. Step 6: Final answer
    x = 79,796.35

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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.