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Finding the Fourth Proportional to 115,673,781.60, 173,794,107.60 and 86,975,967.60

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Solution

The fourth proportional to 115,673,781.60, 173,794,107.60 and 86,975,967.60 is: 130,677,068.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,673,781.60 : 173,794,107.60 = 86,975,967.60 : x
  2. Step 2: Convert to fraction form
    115,673,781.60/173,794,107.60 = 86,975,967.60/x
  3. Step 3: Cross multiply
    115,673,781.60x = 173,794,107.60 × 86,975,967.60
  4. Step 4: Simplify right side
    115,673,781.60x = 15,115,910,671,688,512
  5. Step 5: Solve for x
    x = 15,115,910,671,688,512/115,673,781.60
  6. Step 6: Final answer
    x = 130,677,068.41

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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.