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Finding the Fourth Proportional to 91,028, 136,565.04 and 25,364

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Solution

The fourth proportional to 91,028, 136,565.04 and 25,364 is: 38,052.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,028 : 136,565.04 = 25,364 : x
  2. Step 2: Convert to fraction form
    91,028/136,565.04 = 25,364/x
  3. Step 3: Cross multiply
    91,028x = 136,565.04 × 25,364
  4. Step 4: Simplify right side
    91,028x = 3,463,835,674.56
  5. Step 5: Solve for x
    x = 3,463,835,674.56/91,028
  6. Step 6: Final answer
    x = 38,052.42

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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.