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Finding the Fourth Proportional to 70,860.66, 97,786.54 and 39,032.52

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Solution

The fourth proportional to 70,860.66, 97,786.54 and 39,032.52 is: 53,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,860.66 : 97,786.54 = 39,032.52 : x
  2. Step 2: Convert to fraction form
    70,860.66/97,786.54 = 39,032.52/x
  3. Step 3: Cross multiply
    70,860.66x = 97,786.54 × 39,032.52
  4. Step 4: Simplify right side
    70,860.66x = 3,816,855,078.28
  5. Step 5: Solve for x
    x = 3,816,855,078.28/70,860.66
  6. Step 6: Final answer
    x = 53,864.23

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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.