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Finding the Fourth Proportional to 265,128.72, 365,893.38 and 151,958.76

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Solution

The fourth proportional to 265,128.72, 365,893.38 and 151,958.76 is: 209,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,128.72 : 365,893.38 = 151,958.76 : x
  2. Step 2: Convert to fraction form
    265,128.72/365,893.38 = 151,958.76/x
  3. Step 3: Cross multiply
    265,128.72x = 365,893.38 × 151,958.76
  4. Step 4: Simplify right side
    265,128.72x = 55,600,704,317.01
  5. Step 5: Solve for x
    x = 55,600,704,317.01/265,128.72
  6. Step 6: Final answer
    x = 209,712.11

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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.