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Finding the Fourth Proportional to 174,671.98, 261,821.10 and 90,347.24

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Solution

The fourth proportional to 174,671.98, 261,821.10 and 90,347.24 is: 135,424.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,671.98 : 261,821.10 = 90,347.24 : x
  2. Step 2: Convert to fraction form
    174,671.98/261,821.10 = 90,347.24/x
  3. Step 3: Cross multiply
    174,671.98x = 261,821.10 × 90,347.24
  4. Step 4: Simplify right side
    174,671.98x = 23,654,814,752.12
  5. Step 5: Solve for x
    x = 23,654,814,752.12/174,671.98
  6. Step 6: Final answer
    x = 135,424.21

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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.