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Finding the Fourth Proportional to 141,843.76, 212,814.24 and 48,415.12

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Solution

The fourth proportional to 141,843.76, 212,814.24 and 48,415.12 is: 72,639.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,843.76 : 212,814.24 = 48,415.12 : x
  2. Step 2: Convert to fraction form
    141,843.76/212,814.24 = 48,415.12/x
  3. Step 3: Cross multiply
    141,843.76x = 212,814.24 × 48,415.12
  4. Step 4: Simplify right side
    141,843.76x = 10,303,425,661.16
  5. Step 5: Solve for x
    x = 10,303,425,661.16/141,843.76
  6. Step 6: Final answer
    x = 72,639.26

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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.