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Finding the Fourth Proportional to 175,242.48, 262,990.44 and 70,090.80

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Solution

The fourth proportional to 175,242.48, 262,990.44 and 70,090.80 is: 105,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,242.48 : 262,990.44 = 70,090.80 : x
  2. Step 2: Convert to fraction form
    175,242.48/262,990.44 = 70,090.80/x
  3. Step 3: Cross multiply
    175,242.48x = 262,990.44 × 70,090.80
  4. Step 4: Simplify right side
    175,242.48x = 18,433,210,331.95
  5. Step 5: Solve for x
    x = 18,433,210,331.95/175,242.48
  6. Step 6: Final answer
    x = 105,186.88

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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.