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Finding the Fourth Proportional to 351,259.36, 526,889.01 and 85,019.86

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Solution

The fourth proportional to 351,259.36, 526,889.01 and 85,019.86 is: 127,529.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,259.36 : 526,889.01 = 85,019.86 : x
  2. Step 2: Convert to fraction form
    351,259.36/526,889.01 = 85,019.86/x
  3. Step 3: Cross multiply
    351,259.36x = 526,889.01 × 85,019.86
  4. Step 4: Simplify right side
    351,259.36x = 44,796,029,865.74
  5. Step 5: Solve for x
    x = 44,796,029,865.74/351,259.36
  6. Step 6: Final answer
    x = 127,529.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.