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Finding the Fourth Proportional to 141,570.16, 212,486.52 and 71,498.64

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Solution

The fourth proportional to 141,570.16, 212,486.52 and 71,498.64 is: 107,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,570.16 : 212,486.52 = 71,498.64 : x
  2. Step 2: Convert to fraction form
    141,570.16/212,486.52 = 71,498.64/x
  3. Step 3: Cross multiply
    141,570.16x = 212,486.52 × 71,498.64
  4. Step 4: Simplify right side
    141,570.16x = 15,192,497,198.33
  5. Step 5: Solve for x
    x = 15,192,497,198.33/141,570.16
  6. Step 6: Final answer
    x = 107,314.26

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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.