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Finding the Fourth Proportional to 105,090.80, 157,650.60 and 34,962.80

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Solution

The fourth proportional to 105,090.80, 157,650.60 and 34,962.80 is: 52,448.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,090.80 : 157,650.60 = 34,962.80 : x
  2. Step 2: Convert to fraction form
    105,090.80/157,650.60 = 34,962.80/x
  3. Step 3: Cross multiply
    105,090.80x = 157,650.60 × 34,962.80
  4. Step 4: Simplify right side
    105,090.80x = 5,511,906,397.68
  5. Step 5: Solve for x
    x = 5,511,906,397.68/105,090.80
  6. Step 6: Final answer
    x = 52,448.99

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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.