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Finding the Fourth Proportional to 99,038.94, 136,661.46 and 63,249.90

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Solution

The fourth proportional to 99,038.94, 136,661.46 and 63,249.90 is: 87,277.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,038.94 : 136,661.46 = 63,249.90 : x
  2. Step 2: Convert to fraction form
    99,038.94/136,661.46 = 63,249.90/x
  3. Step 3: Cross multiply
    99,038.94x = 136,661.46 × 63,249.90
  4. Step 4: Simplify right side
    99,038.94x = 8,643,823,678.85
  5. Step 5: Solve for x
    x = 8,643,823,678.85/99,038.94
  6. Step 6: Final answer
    x = 87,277.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.