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Finding the Fourth Proportional to 89,871.53, 124,546.95 and 88,603.07

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Solution

The fourth proportional to 89,871.53, 124,546.95 and 88,603.07 is: 122,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,871.53 : 124,546.95 = 88,603.07 : x
  2. Step 2: Convert to fraction form
    89,871.53/124,546.95 = 88,603.07/x
  3. Step 3: Cross multiply
    89,871.53x = 124,546.95 × 88,603.07
  4. Step 4: Simplify right side
    89,871.53x = 11,035,241,506.40
  5. Step 5: Solve for x
    x = 11,035,241,506.40/89,871.53
  6. Step 6: Final answer
    x = 122,789.08

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.