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Finding the Fourth Proportional to 110,660.93, 152,707.66 and 65,353.51

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Solution

The fourth proportional to 110,660.93, 152,707.66 and 65,353.51 is: 90,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,660.93 : 152,707.66 = 65,353.51 : x
  2. Step 2: Convert to fraction form
    110,660.93/152,707.66 = 65,353.51/x
  3. Step 3: Cross multiply
    110,660.93x = 152,707.66 × 65,353.51
  4. Step 4: Simplify right side
    110,660.93x = 9,979,981,980.00
  5. Step 5: Solve for x
    x = 9,979,981,980.00/110,660.93
  6. Step 6: Final answer
    x = 90,185.24

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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.