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Finding the Fourth Proportional to 101,978,312.54, 152,967,277.63 and 31,953,902.22

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Solution

The fourth proportional to 101,978,312.54, 152,967,277.63 and 31,953,902.22 is: 47,930,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,978,312.54 : 152,967,277.63 = 31,953,902.22 : x
  2. Step 2: Convert to fraction form
    101,978,312.54/152,967,277.63 = 31,953,902.22/x
  3. Step 3: Cross multiply
    101,978,312.54x = 152,967,277.63 × 31,953,902.22
  4. Step 4: Simplify right side
    101,978,312.54x = 4,887,901,432,378,346
  5. Step 5: Solve for x
    x = 4,887,901,432,378,346/101,978,312.54
  6. Step 6: Final answer
    x = 47,930,793.43

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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.