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Finding the Fourth Proportional to 93,690.42, 129,292.83 and 51,248.94

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Solution

The fourth proportional to 93,690.42, 129,292.83 and 51,248.94 is: 70,723.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,690.42 : 129,292.83 = 51,248.94 : x
  2. Step 2: Convert to fraction form
    93,690.42/129,292.83 = 51,248.94/x
  3. Step 3: Cross multiply
    93,690.42x = 129,292.83 × 51,248.94
  4. Step 4: Simplify right side
    93,690.42x = 6,626,120,487.10
  5. Step 5: Solve for x
    x = 6,626,120,487.10/93,690.42
  6. Step 6: Final answer
    x = 70,723.56

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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.