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Finding the Fourth Proportional to 91,315.74, 136,955.39 and 32,153.74

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Solution

The fourth proportional to 91,315.74, 136,955.39 and 32,153.74 is: 48,224.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,315.74 : 136,955.39 = 32,153.74 : x
  2. Step 2: Convert to fraction form
    91,315.74/136,955.39 = 32,153.74/x
  3. Step 3: Cross multiply
    91,315.74x = 136,955.39 × 32,153.74
  4. Step 4: Simplify right side
    91,315.74x = 4,403,628,001.66
  5. Step 5: Solve for x
    x = 4,403,628,001.66/91,315.74
  6. Step 6: Final answer
    x = 48,224.19

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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.