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Finding the Fourth Proportional to 93,468.93, 128,986.46 and 51,027.46

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Solution

The fourth proportional to 93,468.93, 128,986.46 and 51,027.46 is: 70,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,468.93 : 128,986.46 = 51,027.46 : x
  2. Step 2: Convert to fraction form
    93,468.93/128,986.46 = 51,027.46/x
  3. Step 3: Cross multiply
    93,468.93x = 128,986.46 × 51,027.46
  4. Step 4: Simplify right side
    93,468.93x = 6,581,851,428.19
  5. Step 5: Solve for x
    x = 6,581,851,428.19/93,468.93
  6. Step 6: Final answer
    x = 70,417.53

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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.