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Finding the Fourth Proportional to 101,953.09, 140,693.38 and 56,629.27

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Solution

The fourth proportional to 101,953.09, 140,693.38 and 56,629.27 is: 78,147.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,953.09 : 140,693.38 = 56,629.27 : x
  2. Step 2: Convert to fraction form
    101,953.09/140,693.38 = 56,629.27/x
  3. Step 3: Cross multiply
    101,953.09x = 140,693.38 × 56,629.27
  4. Step 4: Simplify right side
    101,953.09x = 7,967,363,403.23
  5. Step 5: Solve for x
    x = 7,967,363,403.23/101,953.09
  6. Step 6: Final answer
    x = 78,147.35

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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.