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Finding the Fourth Proportional to 101,317.44, 139,048.80 and 95,381.76

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Solution

The fourth proportional to 101,317.44, 139,048.80 and 95,381.76 is: 130,902.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,317.44 : 139,048.80 = 95,381.76 : x
  2. Step 2: Convert to fraction form
    101,317.44/139,048.80 = 95,381.76/x
  3. Step 3: Cross multiply
    101,317.44x = 139,048.80 × 95,381.76
  4. Step 4: Simplify right side
    101,317.44x = 13,262,719,269.89
  5. Step 5: Solve for x
    x = 13,262,719,269.89/101,317.44
  6. Step 6: Final answer
    x = 130,902.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.