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Finding the Fourth Proportional to 101,683.01, 140,330.96 and 56,375.21

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Solution

The fourth proportional to 101,683.01, 140,330.96 and 56,375.21 is: 77,802.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,683.01 : 140,330.96 = 56,375.21 : x
  2. Step 2: Convert to fraction form
    101,683.01/140,330.96 = 56,375.21/x
  3. Step 3: Cross multiply
    101,683.01x = 140,330.96 × 56,375.21
  4. Step 4: Simplify right side
    101,683.01x = 7,911,186,355.97
  5. Step 5: Solve for x
    x = 7,911,186,355.97/101,683.01
  6. Step 6: Final answer
    x = 77,802.44

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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.