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Finding the Fourth Proportional to 67,160,714.80, 100,765,955.40 and 64,672,394.80

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Solution

The fourth proportional to 67,160,714.80, 100,765,955.40 and 64,672,394.80 is: 97,032,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,160,714.80 : 100,765,955.40 = 64,672,394.80 : x
  2. Step 2: Convert to fraction form
    67,160,714.80/100,765,955.40 = 64,672,394.80/x
  3. Step 3: Cross multiply
    67,160,714.80x = 100,765,955.40 × 64,672,394.80
  4. Step 4: Simplify right side
    67,160,714.80x = 6,516,775,650,027,992
  5. Step 5: Solve for x
    x = 6,516,775,650,027,992/67,160,714.80
  6. Step 6: Final answer
    x = 97,032,553.47

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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.