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Finding the Fourth Proportional to 122,952.90, 184,429.35 and 107,400.90

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Solution

The fourth proportional to 122,952.90, 184,429.35 and 107,400.90 is: 161,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,952.90 : 184,429.35 = 107,400.90 : x
  2. Step 2: Convert to fraction form
    122,952.90/184,429.35 = 107,400.90/x
  3. Step 3: Cross multiply
    122,952.90x = 184,429.35 × 107,400.90
  4. Step 4: Simplify right side
    122,952.90x = 19,807,878,176.42
  5. Step 5: Solve for x
    x = 19,807,878,176.42/122,952.90
  6. Step 6: Final answer
    x = 161,101.35

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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.