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Finding the Fourth Proportional to 169,234.98, 253,852.47 and 86,187.30

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Solution

The fourth proportional to 169,234.98, 253,852.47 and 86,187.30 is: 129,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,234.98 : 253,852.47 = 86,187.30 : x
  2. Step 2: Convert to fraction form
    169,234.98/253,852.47 = 86,187.30/x
  3. Step 3: Cross multiply
    169,234.98x = 253,852.47 × 86,187.30
  4. Step 4: Simplify right side
    169,234.98x = 21,878,858,987.63
  5. Step 5: Solve for x
    x = 21,878,858,987.63/169,234.98
  6. Step 6: Final answer
    x = 129,280.95

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1.5x scale

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.