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Finding the Fourth Proportional to 202,995.51, 280,134.39 and 112,357.77

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Solution

The fourth proportional to 202,995.51, 280,134.39 and 112,357.77 is: 155,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,995.51 : 280,134.39 = 112,357.77 : x
  2. Step 2: Convert to fraction form
    202,995.51/280,134.39 = 112,357.77/x
  3. Step 3: Cross multiply
    202,995.51x = 280,134.39 × 112,357.77
  4. Step 4: Simplify right side
    202,995.51x = 31,475,275,360.71
  5. Step 5: Solve for x
    x = 31,475,275,360.71/202,995.51
  6. Step 6: Final answer
    x = 155,054.05

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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.