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Finding the Fourth Proportional to 351,835.42, 527,753.51 and 85,595.93

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Solution

The fourth proportional to 351,835.42, 527,753.51 and 85,595.93 is: 128,393.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,835.42 : 527,753.51 = 85,595.93 : x
  2. Step 2: Convert to fraction form
    351,835.42/527,753.51 = 85,595.93/x
  3. Step 3: Cross multiply
    351,835.42x = 527,753.51 × 85,595.93
  4. Step 4: Simplify right side
    351,835.42x = 45,173,554,691.17
  5. Step 5: Solve for x
    x = 45,173,554,691.17/351,835.42
  6. Step 6: Final answer
    x = 128,393.99

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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.