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Finding the Fourth Proportional to 94,647,813.60, 141,873,742.80 and 51,425,695.20

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Solution

The fourth proportional to 94,647,813.60, 141,873,742.80 and 51,425,695.20 is: 77,085,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,647,813.60 : 141,873,742.80 = 51,425,695.20 : x
  2. Step 2: Convert to fraction form
    94,647,813.60/141,873,742.80 = 51,425,695.20/x
  3. Step 3: Cross multiply
    94,647,813.60x = 141,873,742.80 × 51,425,695.20
  4. Step 4: Simplify right side
    94,647,813.60x = 7,295,955,854,115,996
  5. Step 5: Solve for x
    x = 7,295,955,854,115,996/94,647,813.60
  6. Step 6: Final answer
    x = 77,085,307.91

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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.