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Finding the Fourth Proportional to 299,036.61, 448,630.52 and 99,357.98

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Solution

The fourth proportional to 299,036.61, 448,630.52 and 99,357.98 is: 149,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,036.61 : 448,630.52 = 99,357.98 : x
  2. Step 2: Convert to fraction form
    299,036.61/448,630.52 = 99,357.98/x
  3. Step 3: Cross multiply
    299,036.61x = 448,630.52 × 99,357.98
  4. Step 4: Simplify right side
    299,036.61x = 44,575,019,493.61
  5. Step 5: Solve for x
    x = 44,575,019,493.61/299,036.61
  6. Step 6: Final answer
    x = 149,062.08

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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.