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Finding the Fourth Proportional to 488,753,085.60, 733,129,628.40 and 165,636,957.60

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Solution

The fourth proportional to 488,753,085.60, 733,129,628.40 and 165,636,957.60 is: 248,455,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,753,085.60 : 733,129,628.40 = 165,636,957.60 : x
  2. Step 2: Convert to fraction form
    488,753,085.60/733,129,628.40 = 165,636,957.60/x
  3. Step 3: Cross multiply
    488,753,085.60x = 733,129,628.40 × 165,636,957.60
  4. Step 4: Simplify right side
    488,753,085.60x = 121,433,361,174,594,544
  5. Step 5: Solve for x
    x = 121,433,361,174,594,544/488,753,085.60
  6. Step 6: Final answer
    x = 248,455,436.40

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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.