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Finding the Fourth Proportional to 345,776.58, 518,664.87 and 93,057.64

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Solution

The fourth proportional to 345,776.58, 518,664.87 and 93,057.64 is: 139,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,776.58 : 518,664.87 = 93,057.64 : x
  2. Step 2: Convert to fraction form
    345,776.58/518,664.87 = 93,057.64/x
  3. Step 3: Cross multiply
    345,776.58x = 518,664.87 × 93,057.64
  4. Step 4: Simplify right side
    345,776.58x = 48,265,727,456.44
  5. Step 5: Solve for x
    x = 48,265,727,456.44/345,776.58
  6. Step 6: Final answer
    x = 139,586.46

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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.