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Finding the Fourth Proportional to 113,937.99, 170,941.59 and 80,722.32

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Solution

The fourth proportional to 113,937.99, 170,941.59 and 80,722.32 is: 121,108.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,937.99 : 170,941.59 = 80,722.32 : x
  2. Step 2: Convert to fraction form
    113,937.99/170,941.59 = 80,722.32/x
  3. Step 3: Cross multiply
    113,937.99x = 170,941.59 × 80,722.32
  4. Step 4: Simplify right side
    113,937.99x = 13,798,801,729.29
  5. Step 5: Solve for x
    x = 13,798,801,729.29/113,937.99
  6. Step 6: Final answer
    x = 121,108.00

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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.