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Finding the Fourth Proportional to 101,009.44, 139,393.98 and 55,689.03

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Solution

The fourth proportional to 101,009.44, 139,393.98 and 55,689.03 is: 76,851.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,009.44 : 139,393.98 = 55,689.03 : x
  2. Step 2: Convert to fraction form
    101,009.44/139,393.98 = 55,689.03/x
  3. Step 3: Cross multiply
    101,009.44x = 139,393.98 × 55,689.03
  4. Step 4: Simplify right side
    101,009.44x = 7,762,715,534.04
  5. Step 5: Solve for x
    x = 7,762,715,534.04/101,009.44
  6. Step 6: Final answer
    x = 76,851.39

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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.