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Finding the Fourth Proportional to 93,294.66, 128,750.10 and 53,015.25

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Solution

The fourth proportional to 93,294.66, 128,750.10 and 53,015.25 is: 73,163.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,294.66 : 128,750.10 = 53,015.25 : x
  2. Step 2: Convert to fraction form
    93,294.66/128,750.10 = 53,015.25/x
  3. Step 3: Cross multiply
    93,294.66x = 128,750.10 × 53,015.25
  4. Step 4: Simplify right side
    93,294.66x = 6,825,718,739.03
  5. Step 5: Solve for x
    x = 6,825,718,739.03/93,294.66
  6. Step 6: Final answer
    x = 73,163.02

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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.