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Finding the Fourth Proportional to 91,097, 136,716.06 and 63,212.84

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Solution

The fourth proportional to 91,097, 136,716.06 and 63,212.84 is: 94,868.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,097 : 136,716.06 = 63,212.84 : x
  2. Step 2: Convert to fraction form
    91,097/136,716.06 = 63,212.84/x
  3. Step 3: Cross multiply
    91,097x = 136,716.06 × 63,212.84
  4. Step 4: Simplify right side
    91,097x = 8,642,210,426.21
  5. Step 5: Solve for x
    x = 8,642,210,426.21/91,097
  6. Step 6: Final answer
    x = 94,868.22

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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.