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Finding the Fourth Proportional to 88,968.57, 122,764.53 and 53,151

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Solution

The fourth proportional to 88,968.57, 122,764.53 and 53,151 is: 73,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,968.57 : 122,764.53 = 53,151 : x
  2. Step 2: Convert to fraction form
    88,968.57/122,764.53 = 53,151/x
  3. Step 3: Cross multiply
    88,968.57x = 122,764.53 × 53,151
  4. Step 4: Simplify right side
    88,968.57x = 6,525,057,534.03
  5. Step 5: Solve for x
    x = 6,525,057,534.03/88,968.57
  6. Step 6: Final answer
    x = 73,341.15

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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.