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Finding the Fourth Proportional to 91,272.34, 125,952.90 and 53,035.08

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Solution

The fourth proportional to 91,272.34, 125,952.90 and 53,035.08 is: 73,186.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,272.34 : 125,952.90 = 53,035.08 : x
  2. Step 2: Convert to fraction form
    91,272.34/125,952.90 = 53,035.08/x
  3. Step 3: Cross multiply
    91,272.34x = 125,952.90 × 53,035.08
  4. Step 4: Simplify right side
    91,272.34x = 6,679,922,127.73
  5. Step 5: Solve for x
    x = 6,679,922,127.73/91,272.34
  6. Step 6: Final answer
    x = 73,186.71

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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.