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Finding the Fourth Proportional to 64,230.80, 96,346.20 and 60,342.80

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Solution

The fourth proportional to 64,230.80, 96,346.20 and 60,342.80 is: 90,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,230.80 : 96,346.20 = 60,342.80 : x
  2. Step 2: Convert to fraction form
    64,230.80/96,346.20 = 60,342.80/x
  3. Step 3: Cross multiply
    64,230.80x = 96,346.20 × 60,342.80
  4. Step 4: Simplify right side
    64,230.80x = 5,813,799,477.36
  5. Step 5: Solve for x
    x = 5,813,799,477.36/64,230.80
  6. Step 6: Final answer
    x = 90,514.20

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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.