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Finding the Fourth Proportional to 351,696.52, 527,545.44 and 85,457.26

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Solution

The fourth proportional to 351,696.52, 527,545.44 and 85,457.26 is: 128,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,696.52 : 527,545.44 = 85,457.26 : x
  2. Step 2: Convert to fraction form
    351,696.52/527,545.44 = 85,457.26/x
  3. Step 3: Cross multiply
    351,696.52x = 527,545.44 × 85,457.26
  4. Step 4: Simplify right side
    351,696.52x = 45,082,587,827.89
  5. Step 5: Solve for x
    x = 45,082,587,827.89/351,696.52
  6. Step 6: Final answer
    x = 128,186.05

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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.