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Finding the Fourth Proportional to 189,235.70, 283,805.16 and 56,084.90

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Solution

The fourth proportional to 189,235.70, 283,805.16 and 56,084.90 is: 84,113.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,235.70 : 283,805.16 = 56,084.90 : x
  2. Step 2: Convert to fraction form
    189,235.70/283,805.16 = 56,084.90/x
  3. Step 3: Cross multiply
    189,235.70x = 283,805.16 × 56,084.90
  4. Step 4: Simplify right side
    189,235.70x = 15,917,184,018.08
  5. Step 5: Solve for x
    x = 15,917,184,018.08/189,235.70
  6. Step 6: Final answer
    x = 84,113.01

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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.