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Finding the Fourth Proportional to 202,698.55, 279,722.16 and 112,056.82

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Solution

The fourth proportional to 202,698.55, 279,722.16 and 112,056.82 is: 154,637.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,698.55 : 279,722.16 = 112,056.82 : x
  2. Step 2: Convert to fraction form
    202,698.55/279,722.16 = 112,056.82/x
  3. Step 3: Cross multiply
    202,698.55x = 279,722.16 × 112,056.82
  4. Step 4: Simplify right side
    202,698.55x = 31,344,775,033.83
  5. Step 5: Solve for x
    x = 31,344,775,033.83/202,698.55
  6. Step 6: Final answer
    x = 154,637.39

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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.