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Finding the Fourth Proportional to 110,937.30, 153,081.54 and 65,616.90

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Solution

The fourth proportional to 110,937.30, 153,081.54 and 65,616.90 is: 90,544.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,937.30 : 153,081.54 = 65,616.90 : x
  2. Step 2: Convert to fraction form
    110,937.30/153,081.54 = 65,616.90/x
  3. Step 3: Cross multiply
    110,937.30x = 153,081.54 × 65,616.90
  4. Step 4: Simplify right side
    110,937.30x = 10,044,736,102.03
  5. Step 5: Solve for x
    x = 10,044,736,102.03/110,937.30
  6. Step 6: Final answer
    x = 90,544.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.