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Finding the Fourth Proportional to 93,390.44, 128,873.56 and 53,098.52

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Solution

The fourth proportional to 93,390.44, 128,873.56 and 53,098.52 is: 73,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,390.44 : 128,873.56 = 53,098.52 : x
  2. Step 2: Convert to fraction form
    93,390.44/128,873.56 = 53,098.52/x
  3. Step 3: Cross multiply
    93,390.44x = 128,873.56 × 53,098.52
  4. Step 4: Simplify right side
    93,390.44x = 6,842,995,303.13
  5. Step 5: Solve for x
    x = 6,842,995,303.13/93,390.44
  6. Step 6: Final answer
    x = 73,272.97

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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.