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Finding the Fourth Proportional to 93,342.80, 128,824.10 and 53,062.61

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Solution

The fourth proportional to 93,342.80, 128,824.10 and 53,062.61 is: 73,232.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,342.80 : 128,824.10 = 53,062.61 : x
  2. Step 2: Convert to fraction form
    93,342.80/128,824.10 = 53,062.61/x
  3. Step 3: Cross multiply
    93,342.80x = 128,824.10 × 53,062.61
  4. Step 4: Simplify right side
    93,342.80x = 6,835,742,067.47
  5. Step 5: Solve for x
    x = 6,835,742,067.47/93,342.80
  6. Step 6: Final answer
    x = 73,232.67

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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.