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Finding the Fourth Proportional to 93,603,979.20, 140,238,007.20 and 80,167,051.20

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Solution

The fourth proportional to 93,603,979.20, 140,238,007.20 and 80,167,051.20 is: 120,106,726.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,603,979.20 : 140,238,007.20 = 80,167,051.20 : x
  2. Step 2: Convert to fraction form
    93,603,979.20/140,238,007.20 = 80,167,051.20/x
  3. Step 3: Cross multiply
    93,603,979.20x = 140,238,007.20 × 80,167,051.20
  4. Step 4: Simplify right side
    93,603,979.20x = 11,242,467,503,388,368
  5. Step 5: Solve for x
    x = 11,242,467,503,388,368/93,603,979.20
  6. Step 6: Final answer
    x = 120,106,726.23

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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.