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Finding the Fourth Proportional to 301,235.16, 451,853.32 and 90,873.30

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Solution

The fourth proportional to 301,235.16, 451,853.32 and 90,873.30 is: 136,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,235.16 : 451,853.32 = 90,873.30 : x
  2. Step 2: Convert to fraction form
    301,235.16/451,853.32 = 90,873.30/x
  3. Step 3: Cross multiply
    301,235.16x = 451,853.32 × 90,873.30
  4. Step 4: Simplify right side
    301,235.16x = 41,061,402,304.36
  5. Step 5: Solve for x
    x = 41,061,402,304.36/301,235.16
  6. Step 6: Final answer
    x = 136,310.12

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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.