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Finding the Fourth Proportional to 93,352.40, 128,821.19 and 53,060.57

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Solution

The fourth proportional to 93,352.40, 128,821.19 and 53,060.57 is: 73,220.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,352.40 : 128,821.19 = 53,060.57 : x
  2. Step 2: Convert to fraction form
    93,352.40/128,821.19 = 53,060.57/x
  3. Step 3: Cross multiply
    93,352.40x = 128,821.19 × 53,060.57
  4. Step 4: Simplify right side
    93,352.40x = 6,835,324,860.07
  5. Step 5: Solve for x
    x = 6,835,324,860.07/93,352.40
  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.