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Finding the Fourth Proportional to 448,090.80, 671,617.80 and 181,719.60

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Solution

The fourth proportional to 448,090.80, 671,617.80 and 181,719.60 is: 272,369.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,090.80 : 671,617.80 = 181,719.60 : x
  2. Step 2: Convert to fraction form
    448,090.80/671,617.80 = 181,719.60/x
  3. Step 3: Cross multiply
    448,090.80x = 671,617.80 × 181,719.60
  4. Step 4: Simplify right side
    448,090.80x = 122,046,117,968.88
  5. Step 5: Solve for x
    x = 122,046,117,968.88/448,090.80
  6. Step 6: Final answer
    x = 272,369.17

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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.