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Finding the Fourth Proportional to 105,504.66, 145,596.66 and 57,760.98

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Solution

The fourth proportional to 105,504.66, 145,596.66 and 57,760.98 is: 79,710.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,504.66 : 145,596.66 = 57,760.98 : x
  2. Step 2: Convert to fraction form
    105,504.66/145,596.66 = 57,760.98/x
  3. Step 3: Cross multiply
    105,504.66x = 145,596.66 × 57,760.98
  4. Step 4: Simplify right side
    105,504.66x = 8,409,805,766.33
  5. Step 5: Solve for x
    x = 8,409,805,766.33/105,504.66
  6. Step 6: Final answer
    x = 79,710.28

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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.