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Finding the Fourth Proportional to 141,030.80, 211,891.80 and 106,038.80

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Solution

The fourth proportional to 141,030.80, 211,891.80 and 106,038.80 is: 159,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,030.80 : 211,891.80 = 106,038.80 : x
  2. Step 2: Convert to fraction form
    141,030.80/211,891.80 = 106,038.80/x
  3. Step 3: Cross multiply
    141,030.80x = 211,891.80 × 106,038.80
  4. Step 4: Simplify right side
    141,030.80x = 22,468,752,201.84
  5. Step 5: Solve for x
    x = 22,468,752,201.84/141,030.80
  6. Step 6: Final answer
    x = 159,318.05

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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.