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Finding the Fourth Proportional to 91,996.86, 137,966.13 and 39,392.22

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Solution

The fourth proportional to 91,996.86, 137,966.13 and 39,392.22 is: 59,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,996.86 : 137,966.13 = 39,392.22 : x
  2. Step 2: Convert to fraction form
    91,996.86/137,966.13 = 39,392.22/x
  3. Step 3: Cross multiply
    91,996.86x = 137,966.13 × 39,392.22
  4. Step 4: Simplify right side
    91,996.86x = 5,434,792,145.51
  5. Step 5: Solve for x
    x = 5,434,792,145.51/91,996.86
  6. Step 6: Final answer
    x = 59,075.84

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1.5x scale

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.