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Finding the Fourth Proportional to 88,957.73, 122,749.53 and 53,140.13

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Solution

The fourth proportional to 88,957.73, 122,749.53 and 53,140.13 is: 73,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,957.73 : 122,749.53 = 53,140.13 : x
  2. Step 2: Convert to fraction form
    88,957.73/122,749.53 = 53,140.13/x
  3. Step 3: Cross multiply
    88,957.73x = 122,749.53 × 53,140.13
  4. Step 4: Simplify right side
    88,957.73x = 6,522,925,367.89
  5. Step 5: Solve for x
    x = 6,522,925,367.89/88,957.73
  6. Step 6: Final answer
    x = 73,326.13

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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.