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Finding the Fourth Proportional to 175,485.44, 242,169.95 and 99,020.77

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Solution

The fourth proportional to 175,485.44, 242,169.95 and 99,020.77 is: 136,648.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,485.44 : 242,169.95 = 99,020.77 : x
  2. Step 2: Convert to fraction form
    175,485.44/242,169.95 = 99,020.77/x
  3. Step 3: Cross multiply
    175,485.44x = 242,169.95 × 99,020.77
  4. Step 4: Simplify right side
    175,485.44x = 23,979,854,919.86
  5. Step 5: Solve for x
    x = 23,979,854,919.86/175,485.44
  6. Step 6: Final answer
    x = 136,648.69

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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.