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Finding the Fourth Proportional to 93,235.80, 139,853.70 and 26,679.90

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Solution

The fourth proportional to 93,235.80, 139,853.70 and 26,679.90 is: 40,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,235.80 : 139,853.70 = 26,679.90 : x
  2. Step 2: Convert to fraction form
    93,235.80/139,853.70 = 26,679.90/x
  3. Step 3: Cross multiply
    93,235.80x = 139,853.70 × 26,679.90
  4. Step 4: Simplify right side
    93,235.80x = 3,731,282,730.63
  5. Step 5: Solve for x
    x = 3,731,282,730.63/93,235.80
  6. Step 6: Final answer
    x = 40,019.85

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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.