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Finding the Fourth Proportional to 74,606,578.80, 111,909,868.20 and 44,298,841.20

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Solution

The fourth proportional to 74,606,578.80, 111,909,868.20 and 44,298,841.20 is: 66,448,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,606,578.80 : 111,909,868.20 = 44,298,841.20 : x
  2. Step 2: Convert to fraction form
    74,606,578.80/111,909,868.20 = 44,298,841.20/x
  3. Step 3: Cross multiply
    74,606,578.80x = 111,909,868.20 × 44,298,841.20
  4. Step 4: Simplify right side
    74,606,578.80x = 4,957,477,480,104,730
  5. Step 5: Solve for x
    x = 4,957,477,480,104,730/74,606,578.80
  6. Step 6: Final answer
    x = 66,448,261.80

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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.