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Finding the Fourth Proportional to 93,884.55, 129,559.95 and 51,442.98

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Solution

The fourth proportional to 93,884.55, 129,559.95 and 51,442.98 is: 70,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,884.55 : 129,559.95 = 51,442.98 : x
  2. Step 2: Convert to fraction form
    93,884.55/129,559.95 = 51,442.98/x
  3. Step 3: Cross multiply
    93,884.55x = 129,559.95 × 51,442.98
  4. Step 4: Simplify right side
    93,884.55x = 6,664,949,916.65
  5. Step 5: Solve for x
    x = 6,664,949,916.65/93,884.55
  6. Step 6: Final answer
    x = 70,990.91

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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.