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Finding the Fourth Proportional to 93,395.38, 128,885.65 and 59,861.38

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Solution

The fourth proportional to 93,395.38, 128,885.65 and 59,861.38 is: 82,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,395.38 : 128,885.65 = 59,861.38 : x
  2. Step 2: Convert to fraction form
    93,395.38/128,885.65 = 59,861.38/x
  3. Step 3: Cross multiply
    93,395.38x = 128,885.65 × 59,861.38
  4. Step 4: Simplify right side
    93,395.38x = 7,715,272,077.12
  5. Step 5: Solve for x
    x = 7,715,272,077.12/93,395.38
  6. Step 6: Final answer
    x = 82,608.72

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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.