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Finding the Fourth Proportional to 93,142.70, 139,719.11 and 26,577.71

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Solution

The fourth proportional to 93,142.70, 139,719.11 and 26,577.71 is: 39,868.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,142.70 : 139,719.11 = 26,577.71 : x
  2. Step 2: Convert to fraction form
    93,142.70/139,719.11 = 26,577.71/x
  3. Step 3: Cross multiply
    93,142.70x = 139,719.11 × 26,577.71
  4. Step 4: Simplify right side
    93,142.70x = 3,713,413,987.04
  5. Step 5: Solve for x
    x = 3,713,413,987.04/93,142.70
  6. Step 6: Final answer
    x = 39,868.01

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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.