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Finding the Fourth Proportional to 93,885.77, 129,564 and 51,441.77

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Solution

The fourth proportional to 93,885.77, 129,564 and 51,441.77 is: 70,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,885.77 : 129,564 = 51,441.77 : x
  2. Step 2: Convert to fraction form
    93,885.77/129,564 = 51,441.77/x
  3. Step 3: Cross multiply
    93,885.77x = 129,564 × 51,441.77
  4. Step 4: Simplify right side
    93,885.77x = 6,665,000,840.46
  5. Step 5: Solve for x
    x = 6,665,000,840.46/93,885.77
  6. Step 6: Final answer
    x = 70,990.54

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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.