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Finding the Fourth Proportional to 208,796.01, 288,139.25 and 113,302.68

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Solution

The fourth proportional to 208,796.01, 288,139.25 and 113,302.68 is: 156,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,796.01 : 288,139.25 = 113,302.68 : x
  2. Step 2: Convert to fraction form
    208,796.01/288,139.25 = 113,302.68/x
  3. Step 3: Cross multiply
    208,796.01x = 288,139.25 × 113,302.68
  4. Step 4: Simplify right side
    208,796.01x = 32,646,949,238.19
  5. Step 5: Solve for x
    x = 32,646,949,238.19/208,796.01
  6. Step 6: Final answer
    x = 156,358.11

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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.