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Finding the Fourth Proportional to 91,698.78, 137,502.81 and 32,525.58

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Solution

The fourth proportional to 91,698.78, 137,502.81 and 32,525.58 is: 48,772.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,698.78 : 137,502.81 = 32,525.58 : x
  2. Step 2: Convert to fraction form
    91,698.78/137,502.81 = 32,525.58/x
  3. Step 3: Cross multiply
    91,698.78x = 137,502.81 × 32,525.58
  4. Step 4: Simplify right side
    91,698.78x = 4,472,358,646.88
  5. Step 5: Solve for x
    x = 4,472,358,646.88/91,698.78
  6. Step 6: Final answer
    x = 48,772.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.