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Finding the Fourth Proportional to 81,477.44, 122,332.80 and 60,482.24

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Solution

The fourth proportional to 81,477.44, 122,332.80 and 60,482.24 is: 90,809.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,477.44 : 122,332.80 = 60,482.24 : x
  2. Step 2: Convert to fraction form
    81,477.44/122,332.80 = 60,482.24/x
  3. Step 3: Cross multiply
    81,477.44x = 122,332.80 × 60,482.24
  4. Step 4: Simplify right side
    81,477.44x = 7,398,961,769.47
  5. Step 5: Solve for x
    x = 7,398,961,769.47/81,477.44
  6. Step 6: Final answer
    x = 90,809.94

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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.