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Finding the Fourth Proportional to 202,995.84, 280,125.64 and 112,343.32

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Solution

The fourth proportional to 202,995.84, 280,125.64 and 112,343.32 is: 155,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,995.84 : 280,125.64 = 112,343.32 : x
  2. Step 2: Convert to fraction form
    202,995.84/280,125.64 = 112,343.32/x
  3. Step 3: Cross multiply
    202,995.84x = 280,125.64 × 112,343.32
  4. Step 4: Simplify right side
    202,995.84x = 31,470,244,414.72
  5. Step 5: Solve for x
    x = 31,470,244,414.72/202,995.84
  6. Step 6: Final answer
    x = 155,029.01

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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.