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Finding the Fourth Proportional to 105,683.81, 145,844.84 and 60,367.77

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Solution

The fourth proportional to 105,683.81, 145,844.84 and 60,367.77 is: 83,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,683.81 : 145,844.84 = 60,367.77 : x
  2. Step 2: Convert to fraction form
    105,683.81/145,844.84 = 60,367.77/x
  3. Step 3: Cross multiply
    105,683.81x = 145,844.84 × 60,367.77
  4. Step 4: Simplify right side
    105,683.81x = 8,804,327,907.73
  5. Step 5: Solve for x
    x = 8,804,327,907.73/105,683.81
  6. Step 6: Final answer
    x = 83,308.20

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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.