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Finding the Fourth Proportional to 93,324.16, 128,755.20 and 65,019.52

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Solution

The fourth proportional to 93,324.16, 128,755.20 and 65,019.52 is: 89,704.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,324.16 : 128,755.20 = 65,019.52 : x
  2. Step 2: Convert to fraction form
    93,324.16/128,755.20 = 65,019.52/x
  3. Step 3: Cross multiply
    93,324.16x = 128,755.20 × 65,019.52
  4. Step 4: Simplify right side
    93,324.16x = 8,371,601,301.50
  5. Step 5: Solve for x
    x = 8,371,601,301.50/93,324.16
  6. Step 6: Final answer
    x = 89,704.54

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1.5x scale

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.