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Finding the Fourth Proportional to 88,724.16, 133,068.80 and 26,380.80

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Solution

The fourth proportional to 88,724.16, 133,068.80 and 26,380.80 is: 39,566.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,724.16 : 133,068.80 = 26,380.80 : x
  2. Step 2: Convert to fraction form
    88,724.16/133,068.80 = 26,380.80/x
  3. Step 3: Cross multiply
    88,724.16x = 133,068.80 × 26,380.80
  4. Step 4: Simplify right side
    88,724.16x = 3,510,461,399.04
  5. Step 5: Solve for x
    x = 3,510,461,399.04/88,724.16
  6. Step 6: Final answer
    x = 39,566.01

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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.