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Finding the Fourth Proportional to 141,098.91, 211,669.02 and 66,226.66

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Solution

The fourth proportional to 141,098.91, 211,669.02 and 66,226.66 is: 99,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,098.91 : 211,669.02 = 66,226.66 : x
  2. Step 2: Convert to fraction form
    141,098.91/211,669.02 = 66,226.66/x
  3. Step 3: Cross multiply
    141,098.91x = 211,669.02 × 66,226.66
  4. Step 4: Simplify right side
    141,098.91x = 14,018,132,220.07
  5. Step 5: Solve for x
    x = 14,018,132,220.07/141,098.91
  6. Step 6: Final answer
    x = 99,349.68

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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.