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Finding the Fourth Proportional to 70,455.99, 97,118.82 and 53,391.92

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Solution

The fourth proportional to 70,455.99, 97,118.82 and 53,391.92 is: 73,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455.99 : 97,118.82 = 53,391.92 : x
  2. Step 2: Convert to fraction form
    70,455.99/97,118.82 = 53,391.92/x
  3. Step 3: Cross multiply
    70,455.99x = 97,118.82 × 53,391.92
  4. Step 4: Simplify right side
    70,455.99x = 5,185,360,510.73
  5. Step 5: Solve for x
    x = 5,185,360,510.73/70,455.99
  6. Step 6: Final answer
    x = 73,597.16

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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.