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Finding the Fourth Proportional to 105,683.70, 145,844.70 and 60,367.68

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Solution

The fourth proportional to 105,683.70, 145,844.70 and 60,367.68 is: 83,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,683.70 : 145,844.70 = 60,367.68 : x
  2. Step 2: Convert to fraction form
    105,683.70/145,844.70 = 60,367.68/x
  3. Step 3: Cross multiply
    105,683.70x = 145,844.70 × 60,367.68
  4. Step 4: Simplify right side
    105,683.70x = 8,804,306,179.30
  5. Step 5: Solve for x
    x = 8,804,306,179.30/105,683.70
  6. Step 6: Final answer
    x = 83,308.08

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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.