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Finding the Fourth Proportional to 203,700.64, 281,102.65 and 113,051.34

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Solution

The fourth proportional to 203,700.64, 281,102.65 and 113,051.34 is: 156,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,700.64 : 281,102.65 = 113,051.34 : x
  2. Step 2: Convert to fraction form
    203,700.64/281,102.65 = 113,051.34/x
  3. Step 3: Cross multiply
    203,700.64x = 281,102.65 × 113,051.34
  4. Step 4: Simplify right side
    203,700.64x = 31,779,031,260.05
  5. Step 5: Solve for x
    x = 31,779,031,260.05/203,700.64
  6. Step 6: Final answer
    x = 156,008.50

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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.