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Finding the Fourth Proportional to 140,679.88, 211,018.91 and 35,498.95

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Solution

The fourth proportional to 140,679.88, 211,018.91 and 35,498.95 is: 53,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,679.88 : 211,018.91 = 35,498.95 : x
  2. Step 2: Convert to fraction form
    140,679.88/211,018.91 = 35,498.95/x
  3. Step 3: Cross multiply
    140,679.88x = 211,018.91 × 35,498.95
  4. Step 4: Simplify right side
    140,679.88x = 7,490,949,030.10
  5. Step 5: Solve for x
    x = 7,490,949,030.10/140,679.88
  6. Step 6: Final answer
    x = 53,248.19

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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.