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Finding the Fourth Proportional to 93,882, 129,557.16 and 51,442.14

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Solution

The fourth proportional to 93,882, 129,557.16 and 51,442.14 is: 70,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,882 : 129,557.16 = 51,442.14 : x
  2. Step 2: Convert to fraction form
    93,882/129,557.16 = 51,442.14/x
  3. Step 3: Cross multiply
    93,882x = 129,557.16 × 51,442.14
  4. Step 4: Simplify right side
    93,882x = 6,664,697,562.72
  5. Step 5: Solve for x
    x = 6,664,697,562.72/93,882
  6. Step 6: Final answer
    x = 70,990.15

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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.