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Finding the Fourth Proportional to 105,808.55, 146,015.72 and 60,487.53

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Solution

The fourth proportional to 105,808.55, 146,015.72 and 60,487.53 is: 83,472.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,808.55 : 146,015.72 = 60,487.53 : x
  2. Step 2: Convert to fraction form
    105,808.55/146,015.72 = 60,487.53/x
  3. Step 3: Cross multiply
    105,808.55x = 146,015.72 × 60,487.53
  4. Step 4: Simplify right side
    105,808.55x = 8,832,130,243.97
  5. Step 5: Solve for x
    x = 8,832,130,243.97/105,808.55
  6. Step 6: Final answer
    x = 83,472.75

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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.