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Finding the Fourth Proportional to 86,153.97, 129,182.36 and 33,503.16

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Solution

The fourth proportional to 86,153.97, 129,182.36 and 33,503.16 is: 50,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,153.97 : 129,182.36 = 33,503.16 : x
  2. Step 2: Convert to fraction form
    86,153.97/129,182.36 = 33,503.16/x
  3. Step 3: Cross multiply
    86,153.97x = 129,182.36 × 33,503.16
  4. Step 4: Simplify right side
    86,153.97x = 4,328,017,108.74
  5. Step 5: Solve for x
    x = 4,328,017,108.74/86,153.97
  6. Step 6: Final answer
    x = 50,235.84

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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.