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Finding the Fourth Proportional to 93,352.38, 128,821.20 and 53,060.55

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Solution

The fourth proportional to 93,352.38, 128,821.20 and 53,060.55 is: 73,220.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,352.38 : 128,821.20 = 53,060.55 : x
  2. Step 2: Convert to fraction form
    93,352.38/128,821.20 = 53,060.55/x
  3. Step 3: Cross multiply
    93,352.38x = 128,821.20 × 53,060.55
  4. Step 4: Simplify right side
    93,352.38x = 6,835,323,723.66
  5. Step 5: Solve for x
    x = 6,835,323,723.66/93,352.38
  6. Step 6: Final answer
    x = 73,220.67

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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.