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Finding the Fourth Proportional to 169,957,647.41, 254,936,457.08 and 47,135,963.25

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Solution

The fourth proportional to 169,957,647.41, 254,936,457.08 and 47,135,963.25 is: 70,703,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,957,647.41 : 254,936,457.08 = 47,135,963.25 : x
  2. Step 2: Convert to fraction form
    169,957,647.41/254,936,457.08 = 47,135,963.25/x
  3. Step 3: Cross multiply
    169,957,647.41x = 254,936,457.08 × 47,135,963.25
  4. Step 4: Simplify right side
    169,957,647.41x = 12,016,675,471,772,402
  5. Step 5: Solve for x
    x = 12,016,675,471,772,402/169,957,647.41
  6. Step 6: Final answer
    x = 70,703,940.98

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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.