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Finding the Fourth Proportional to 88,686.88, 133,052.40 and 26,355.68

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Solution

The fourth proportional to 88,686.88, 133,052.40 and 26,355.68 is: 39,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,686.88 : 133,052.40 = 26,355.68 : x
  2. Step 2: Convert to fraction form
    88,686.88/133,052.40 = 26,355.68/x
  3. Step 3: Cross multiply
    88,686.88x = 133,052.40 × 26,355.68
  4. Step 4: Simplify right side
    88,686.88x = 3,506,686,477.63
  5. Step 5: Solve for x
    x = 3,506,686,477.63/88,686.88
  6. Step 6: Final answer
    x = 39,540.08

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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.