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Finding the Fourth Proportional to 56,901.60, 85,150.80 and 49,586.40

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Solution

The fourth proportional to 56,901.60, 85,150.80 and 49,586.40 is: 74,203.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,901.60 : 85,150.80 = 49,586.40 : x
  2. Step 2: Convert to fraction form
    56,901.60/85,150.80 = 49,586.40/x
  3. Step 3: Cross multiply
    56,901.60x = 85,150.80 × 49,586.40
  4. Step 4: Simplify right side
    56,901.60x = 4,222,321,629.12
  5. Step 5: Solve for x
    x = 4,222,321,629.12/56,901.60
  6. Step 6: Final answer
    x = 74,203.92

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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.