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Finding the Fourth Proportional to 93,773.60, 129,429.60 and 61,943.84

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Solution

The fourth proportional to 93,773.60, 129,429.60 and 61,943.84 is: 85,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,773.60 : 129,429.60 = 61,943.84 : x
  2. Step 2: Convert to fraction form
    93,773.60/129,429.60 = 61,943.84/x
  3. Step 3: Cross multiply
    93,773.60x = 129,429.60 × 61,943.84
  4. Step 4: Simplify right side
    93,773.60x = 8,017,366,433.66
  5. Step 5: Solve for x
    x = 8,017,366,433.66/93,773.60
  6. Step 6: Final answer
    x = 85,497.05

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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.