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Finding the Fourth Proportional to 82,777.60, 124,166.40 and 73,592.20

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Solution

The fourth proportional to 82,777.60, 124,166.40 and 73,592.20 is: 110,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,777.60 : 124,166.40 = 73,592.20 : x
  2. Step 2: Convert to fraction form
    82,777.60/124,166.40 = 73,592.20/x
  3. Step 3: Cross multiply
    82,777.60x = 124,166.40 × 73,592.20
  4. Step 4: Simplify right side
    82,777.60x = 9,137,678,542.08
  5. Step 5: Solve for x
    x = 9,137,678,542.08/82,777.60
  6. Step 6: Final answer
    x = 110,388.30

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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.