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Finding the Fourth Proportional to 88,689.60, 133,060.32 and 26,361.60

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Solution

The fourth proportional to 88,689.60, 133,060.32 and 26,361.60 is: 39,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,689.60 : 133,060.32 = 26,361.60 : x
  2. Step 2: Convert to fraction form
    88,689.60/133,060.32 = 26,361.60/x
  3. Step 3: Cross multiply
    88,689.60x = 133,060.32 × 26,361.60
  4. Step 4: Simplify right side
    88,689.60x = 3,507,682,931.71
  5. Step 5: Solve for x
    x = 3,507,682,931.71/88,689.60
  6. Step 6: Final answer
    x = 39,550.10

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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.