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Finding the Fourth Proportional to 60,490.80, 90,833.40 and 45,716.40

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Solution

The fourth proportional to 60,490.80, 90,833.40 and 45,716.40 is: 68,648.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,490.80 : 90,833.40 = 45,716.40 : x
  2. Step 2: Convert to fraction form
    60,490.80/90,833.40 = 45,716.40/x
  3. Step 3: Cross multiply
    60,490.80x = 90,833.40 × 45,716.40
  4. Step 4: Simplify right side
    60,490.80x = 4,152,576,047.76
  5. Step 5: Solve for x
    x = 4,152,576,047.76/60,490.80
  6. Step 6: Final answer
    x = 68,648.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.