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Finding the Fourth Proportional to 109,395,978.80, 164,118,851.40 and 63,934,372.40

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Solution

The fourth proportional to 109,395,978.80, 164,118,851.40 and 63,934,372.40 is: 95,916,101.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,395,978.80 : 164,118,851.40 = 63,934,372.40 : x
  2. Step 2: Convert to fraction form
    109,395,978.80/164,118,851.40 = 63,934,372.40/x
  3. Step 3: Cross multiply
    109,395,978.80x = 164,118,851.40 × 63,934,372.40
  4. Step 4: Simplify right side
    109,395,978.80x = 10,492,835,763,267,862
  5. Step 5: Solve for x
    x = 10,492,835,763,267,862/109,395,978.80
  6. Step 6: Final answer
    x = 95,916,101.11

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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.