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Finding the Fourth Proportional to 122,108.40, 183,215.28 and 65,937.32

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Solution

The fourth proportional to 122,108.40, 183,215.28 and 65,937.32 is: 98,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,108.40 : 183,215.28 = 65,937.32 : x
  2. Step 2: Convert to fraction form
    122,108.40/183,215.28 = 65,937.32/x
  3. Step 3: Cross multiply
    122,108.40x = 183,215.28 × 65,937.32
  4. Step 4: Simplify right side
    122,108.40x = 12,080,724,546.25
  5. Step 5: Solve for x
    x = 12,080,724,546.25/122,108.40
  6. Step 6: Final answer
    x = 98,934.43

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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.