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Finding the Fourth Proportional to 202,398.37, 279,302.44 and 111,752.40

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Solution

The fourth proportional to 202,398.37, 279,302.44 and 111,752.40 is: 154,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,398.37 : 279,302.44 = 111,752.40 : x
  2. Step 2: Convert to fraction form
    202,398.37/279,302.44 = 111,752.40/x
  3. Step 3: Cross multiply
    202,398.37x = 279,302.44 × 111,752.40
  4. Step 4: Simplify right side
    202,398.37x = 31,212,717,995.86
  5. Step 5: Solve for x
    x = 31,212,717,995.86/202,398.37
  6. Step 6: Final answer
    x = 154,214.28

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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.