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Finding the Fourth Proportional to 141,731, 212,622.64 and 58,631.48

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Solution

The fourth proportional to 141,731, 212,622.64 and 58,631.48 is: 87,958.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,731 : 212,622.64 = 58,631.48 : x
  2. Step 2: Convert to fraction form
    141,731/212,622.64 = 58,631.48/x
  3. Step 3: Cross multiply
    141,731x = 212,622.64 × 58,631.48
  4. Step 4: Simplify right side
    141,731x = 12,466,380,064.71
  5. Step 5: Solve for x
    x = 12,466,380,064.71/141,731
  6. Step 6: Final answer
    x = 87,958.03

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1.5x scale

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.