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Finding the Fourth Proportional to 168,502,405.60, 236,221,872.80 and 168,502,405.60

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Solution

The fourth proportional to 168,502,405.60, 236,221,872.80 and 168,502,405.60 is: 236,221,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,502,405.60 : 236,221,872.80 = 168,502,405.60 : x
  2. Step 2: Convert to fraction form
    168,502,405.60/236,221,872.80 = 168,502,405.60/x
  3. Step 3: Cross multiply
    168,502,405.60x = 236,221,872.80 × 168,502,405.60
  4. Step 4: Simplify right side
    168,502,405.60x = 39,803,953,822,137,208
  5. Step 5: Solve for x
    x = 39,803,953,822,137,208/168,502,405.60
  6. Step 6: Final answer
    x = 236,221,872.80

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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.