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Finding the Fourth Proportional to 73,602,331.32, 101,571,911.91 and 40,563,788.88

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Solution

The fourth proportional to 73,602,331.32, 101,571,911.91 and 40,563,788.88 is: 55,978,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,602,331.32 : 101,571,911.91 = 40,563,788.88 : x
  2. Step 2: Convert to fraction form
    73,602,331.32/101,571,911.91 = 40,563,788.88/x
  3. Step 3: Cross multiply
    73,602,331.32x = 101,571,911.91 × 40,563,788.88
  4. Step 4: Simplify right side
    73,602,331.32x = 4,120,141,590,855,197.50
  5. Step 5: Solve for x
    x = 4,120,141,590,855,197.50/73,602,331.32
  6. Step 6: Final answer
    x = 55,978,411.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.