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Finding the Fourth Proportional to 60,703.20, 91,054.80 and 60,314.40

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Solution

The fourth proportional to 60,703.20, 91,054.80 and 60,314.40 is: 90,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,703.20 : 91,054.80 = 60,314.40 : x
  2. Step 2: Convert to fraction form
    60,703.20/91,054.80 = 60,314.40/x
  3. Step 3: Cross multiply
    60,703.20x = 91,054.80 × 60,314.40
  4. Step 4: Simplify right side
    60,703.20x = 5,491,915,629.12
  5. Step 5: Solve for x
    x = 5,491,915,629.12/60,703.20
  6. Step 6: Final answer
    x = 90,471.60

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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.