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Finding the Fourth Proportional to 351,597.84, 527,400.06 and 85,360.69

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Solution

The fourth proportional to 351,597.84, 527,400.06 and 85,360.69 is: 128,041.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,597.84 : 527,400.06 = 85,360.69 : x
  2. Step 2: Convert to fraction form
    351,597.84/527,400.06 = 85,360.69/x
  3. Step 3: Cross multiply
    351,597.84x = 527,400.06 × 85,360.69
  4. Step 4: Simplify right side
    351,597.84x = 45,019,233,027.64
  5. Step 5: Solve for x
    x = 45,019,233,027.64/351,597.84
  6. Step 6: Final answer
    x = 128,041.84

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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.