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Finding the Fourth Proportional to 141,042.88, 211,599.32 and 69,998.86

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Solution

The fourth proportional to 141,042.88, 211,599.32 and 69,998.86 is: 105,015.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,042.88 : 211,599.32 = 69,998.86 : x
  2. Step 2: Convert to fraction form
    141,042.88/211,599.32 = 69,998.86/x
  3. Step 3: Cross multiply
    141,042.88x = 211,599.32 × 69,998.86
  4. Step 4: Simplify right side
    141,042.88x = 14,811,711,176.78
  5. Step 5: Solve for x
    x = 14,811,711,176.78/141,042.88
  6. Step 6: Final answer
    x = 105,015.66

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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.