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Finding the Fourth Proportional to 141,270.80, 211,798.20 and 71,200.40

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Solution

The fourth proportional to 141,270.80, 211,798.20 and 71,200.40 is: 106,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,270.80 : 211,798.20 = 71,200.40 : x
  2. Step 2: Convert to fraction form
    141,270.80/211,798.20 = 71,200.40/x
  3. Step 3: Cross multiply
    141,270.80x = 211,798.20 × 71,200.40
  4. Step 4: Simplify right side
    141,270.80x = 15,080,116,559.28
  5. Step 5: Solve for x
    x = 15,080,116,559.28/141,270.80
  6. Step 6: Final answer
    x = 106,746.17

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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.