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Finding the Fourth Proportional to 91,095, 136,713.06 and 63,210.84

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Solution

The fourth proportional to 91,095, 136,713.06 and 63,210.84 is: 94,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,095 : 136,713.06 = 63,210.84 : x
  2. Step 2: Convert to fraction form
    91,095/136,713.06 = 63,210.84/x
  3. Step 3: Cross multiply
    91,095x = 136,713.06 × 63,210.84
  4. Step 4: Simplify right side
    91,095x = 8,641,747,361.57
  5. Step 5: Solve for x
    x = 8,641,747,361.57/91,095
  6. Step 6: Final answer
    x = 94,865.22

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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.