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Finding the Fourth Proportional to 93,351.19, 139,980.70 and 40,737.91

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Solution

The fourth proportional to 93,351.19, 139,980.70 and 40,737.91 is: 61,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,351.19 : 139,980.70 = 40,737.91 : x
  2. Step 2: Convert to fraction form
    93,351.19/139,980.70 = 40,737.91/x
  3. Step 3: Cross multiply
    93,351.19x = 139,980.70 × 40,737.91
  4. Step 4: Simplify right side
    93,351.19x = 5,702,521,158.34
  5. Step 5: Solve for x
    x = 5,702,521,158.34/93,351.19
  6. Step 6: Final answer
    x = 61,086.75

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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.