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Finding the Fourth Proportional to 93,082.90, 139,625.88 and 45,023.57

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Solution

The fourth proportional to 93,082.90, 139,625.88 and 45,023.57 is: 67,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,082.90 : 139,625.88 = 45,023.57 : x
  2. Step 2: Convert to fraction form
    93,082.90/139,625.88 = 45,023.57/x
  3. Step 3: Cross multiply
    93,082.90x = 139,625.88 × 45,023.57
  4. Step 4: Simplify right side
    93,082.90x = 6,286,455,916.23
  5. Step 5: Solve for x
    x = 6,286,455,916.23/93,082.90
  6. Step 6: Final answer
    x = 67,536.10

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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.