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Finding the Fourth Proportional to 77,683.01, 107,186.45 and 45,411.36

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Solution

The fourth proportional to 77,683.01, 107,186.45 and 45,411.36 is: 62,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,683.01 : 107,186.45 = 45,411.36 : x
  2. Step 2: Convert to fraction form
    77,683.01/107,186.45 = 45,411.36/x
  3. Step 3: Cross multiply
    77,683.01x = 107,186.45 × 45,411.36
  4. Step 4: Simplify right side
    77,683.01x = 4,867,481,932.14
  5. Step 5: Solve for x
    x = 4,867,481,932.14/77,683.01
  6. Step 6: Final answer
    x = 62,658.26

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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.