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Finding the Fourth Proportional to 299,139,436.80, 448,751,145.60 and 94,646,188.80

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Solution

The fourth proportional to 299,139,436.80, 448,751,145.60 and 94,646,188.80 is: 141,982,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,139,436.80 : 448,751,145.60 = 94,646,188.80 : x
  2. Step 2: Convert to fraction form
    299,139,436.80/448,751,145.60 = 94,646,188.80/x
  3. Step 3: Cross multiply
    299,139,436.80x = 448,751,145.60 × 94,646,188.80
  4. Step 4: Simplify right side
    299,139,436.80x = 42,472,585,650,673,888
  5. Step 5: Solve for x
    x = 42,472,585,650,673,888/299,139,436.80
  6. Step 6: Final answer
    x = 141,982,568.75

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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.