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Finding the Fourth Proportional to 70,944.80, 106,575.60 and 59,280.80

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Solution

The fourth proportional to 70,944.80, 106,575.60 and 59,280.80 is: 89,053.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,944.80 : 106,575.60 = 59,280.80 : x
  2. Step 2: Convert to fraction form
    70,944.80/106,575.60 = 59,280.80/x
  3. Step 3: Cross multiply
    70,944.80x = 106,575.60 × 59,280.80
  4. Step 4: Simplify right side
    70,944.80x = 6,317,886,828.48
  5. Step 5: Solve for x
    x = 6,317,886,828.48/70,944.80
  6. Step 6: Final answer
    x = 89,053.56

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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.