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Finding the Fourth Proportional to 202,699, 279,741.90 and 113,292.28

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Solution

The fourth proportional to 202,699, 279,741.90 and 113,292.28 is: 156,353.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,699 : 279,741.90 = 113,292.28 : x
  2. Step 2: Convert to fraction form
    202,699/279,741.90 = 113,292.28/x
  3. Step 3: Cross multiply
    202,699x = 279,741.90 × 113,292.28
  4. Step 4: Simplify right side
    202,699x = 31,692,597,662.53
  5. Step 5: Solve for x
    x = 31,692,597,662.53/202,699
  6. Step 6: Final answer
    x = 156,353.00

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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.