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Finding the Fourth Proportional to 299,186.20, 448,001.70 and 236,459.80

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Solution

The fourth proportional to 299,186.20, 448,001.70 and 236,459.80 is: 354,075.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,186.20 : 448,001.70 = 236,459.80 : x
  2. Step 2: Convert to fraction form
    299,186.20/448,001.70 = 236,459.80/x
  3. Step 3: Cross multiply
    299,186.20x = 448,001.70 × 236,459.80
  4. Step 4: Simplify right side
    299,186.20x = 105,934,392,381.66
  5. Step 5: Solve for x
    x = 105,934,392,381.66/299,186.20
  6. Step 6: Final answer
    x = 354,075.13

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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.