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Finding the Fourth Proportional to 141,173.94, 211,630.95 and 61,161.63

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Solution

The fourth proportional to 141,173.94, 211,630.95 and 61,161.63 is: 91,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,173.94 : 211,630.95 = 61,161.63 : x
  2. Step 2: Convert to fraction form
    141,173.94/211,630.95 = 61,161.63/x
  3. Step 3: Cross multiply
    141,173.94x = 211,630.95 × 61,161.63
  4. Step 4: Simplify right side
    141,173.94x = 12,943,693,860.45
  5. Step 5: Solve for x
    x = 12,943,693,860.45/141,173.94
  6. Step 6: Final answer
    x = 91,686.14

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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.