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Finding the Fourth Proportional to 70,894.13, 97,840.79 and 52,957.98

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Solution

The fourth proportional to 70,894.13, 97,840.79 and 52,957.98 is: 73,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,894.13 : 97,840.79 = 52,957.98 : x
  2. Step 2: Convert to fraction form
    70,894.13/97,840.79 = 52,957.98/x
  3. Step 3: Cross multiply
    70,894.13x = 97,840.79 × 52,957.98
  4. Step 4: Simplify right side
    70,894.13x = 5,181,450,335.21
  5. Step 5: Solve for x
    x = 5,181,450,335.21/70,894.13
  6. Step 6: Final answer
    x = 73,087.16

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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.