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Finding the Fourth Proportional to 70,201.01, 96,821.65 and 53,030.68

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Solution

The fourth proportional to 70,201.01, 96,821.65 and 53,030.68 is: 73,140.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,201.01 : 96,821.65 = 53,030.68 : x
  2. Step 2: Convert to fraction form
    70,201.01/96,821.65 = 53,030.68/x
  3. Step 3: Cross multiply
    70,201.01x = 96,821.65 × 53,030.68
  4. Step 4: Simplify right side
    70,201.01x = 5,134,517,938.22
  5. Step 5: Solve for x
    x = 5,134,517,938.22/70,201.01
  6. Step 6: Final answer
    x = 73,140.23

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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.