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Finding the Fourth Proportional to 93,322.54, 139,739.80 and 51,114.82

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Solution

The fourth proportional to 93,322.54, 139,739.80 and 51,114.82 is: 76,538.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,322.54 : 139,739.80 = 51,114.82 : x
  2. Step 2: Convert to fraction form
    93,322.54/139,739.80 = 51,114.82/x
  3. Step 3: Cross multiply
    93,322.54x = 139,739.80 × 51,114.82
  4. Step 4: Simplify right side
    93,322.54x = 7,142,774,723.84
  5. Step 5: Solve for x
    x = 7,142,774,723.84/93,322.54
  6. Step 6: Final answer
    x = 76,538.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.