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Finding the Fourth Proportional to 411,292,400.88, 616,916,873.12 and 134,907,208.62

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Solution

The fourth proportional to 411,292,400.88, 616,916,873.12 and 134,907,208.62 is: 202,353,685.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,292,400.88 : 616,916,873.12 = 134,907,208.62 : x
  2. Step 2: Convert to fraction form
    411,292,400.88/616,916,873.12 = 134,907,208.62/x
  3. Step 3: Cross multiply
    411,292,400.88x = 616,916,873.12 × 134,907,208.62
  4. Step 4: Simplify right side
    411,292,400.88x = 83,226,533,303,197,920
  5. Step 5: Solve for x
    x = 83,226,533,303,197,920/411,292,400.88
  6. Step 6: Final answer
    x = 202,353,685.91

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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.