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Finding the Fourth Proportional to 168,502,402.10, 236,221,867.90 and 168,502,402.10

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Solution

The fourth proportional to 168,502,402.10, 236,221,867.90 and 168,502,402.10 is: 236,221,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,502,402.10 : 236,221,867.90 = 168,502,402.10 : x
  2. Step 2: Convert to fraction form
    168,502,402.10/236,221,867.90 = 168,502,402.10/x
  3. Step 3: Cross multiply
    168,502,402.10x = 236,221,867.90 × 168,502,402.10
  4. Step 4: Simplify right side
    168,502,402.10x = 39,803,952,169,698,880
  5. Step 5: Solve for x
    x = 39,803,952,169,698,880/168,502,402.10
  6. Step 6: Final answer
    x = 236,221,867.90

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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.