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Finding the Fourth Proportional to 93,462.26, 128,980.62 and 51,023.52

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Solution

The fourth proportional to 93,462.26, 128,980.62 and 51,023.52 is: 70,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,462.26 : 128,980.62 = 51,023.52 : x
  2. Step 2: Convert to fraction form
    93,462.26/128,980.62 = 51,023.52/x
  3. Step 3: Cross multiply
    93,462.26x = 128,980.62 × 51,023.52
  4. Step 4: Simplify right side
    93,462.26x = 6,581,045,244.18
  5. Step 5: Solve for x
    x = 6,581,045,244.18/93,462.26
  6. Step 6: Final answer
    x = 70,413.94

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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.