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Finding the Fourth Proportional to 295,949,948.80, 415,010,172.80 and 295,949,948.80

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Solution

The fourth proportional to 295,949,948.80, 415,010,172.80 and 295,949,948.80 is: 415,010,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,949,948.80 : 415,010,172.80 = 295,949,948.80 : x
  2. Step 2: Convert to fraction form
    295,949,948.80/415,010,172.80 = 295,949,948.80/x
  3. Step 3: Cross multiply
    295,949,948.80x = 415,010,172.80 × 295,949,948.80
  4. Step 4: Simplify right side
    295,949,948.80x = 122,822,239,391,639,168
  5. Step 5: Solve for x
    x = 122,822,239,391,639,168/295,949,948.80
  6. Step 6: Final answer
    x = 415,010,172.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.