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Finding the Fourth Proportional to 93,803.11, 129,447.01 and 51,361.64

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Solution

The fourth proportional to 93,803.11, 129,447.01 and 51,361.64 is: 70,878.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,803.11 : 129,447.01 = 51,361.64 : x
  2. Step 2: Convert to fraction form
    93,803.11/129,447.01 = 51,361.64/x
  3. Step 3: Cross multiply
    93,803.11x = 129,447.01 × 51,361.64
  4. Step 4: Simplify right side
    93,803.11x = 6,648,611,357.23
  5. Step 5: Solve for x
    x = 6,648,611,357.23/93,803.11
  6. Step 6: Final answer
    x = 70,878.37

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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.