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Finding the Fourth Proportional to 202,649.01, 279,670.10 and 112,003.02

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Solution

The fourth proportional to 202,649.01, 279,670.10 and 112,003.02 is: 154,572.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,649.01 : 279,670.10 = 112,003.02 : x
  2. Step 2: Convert to fraction form
    202,649.01/279,670.10 = 112,003.02/x
  3. Step 3: Cross multiply
    202,649.01x = 279,670.10 × 112,003.02
  4. Step 4: Simplify right side
    202,649.01x = 31,323,895,243.69
  5. Step 5: Solve for x
    x = 31,323,895,243.69/202,649.01
  6. Step 6: Final answer
    x = 154,572.16

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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.