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Finding the Fourth Proportional to 84,564,603.60, 126,846,905.40 and 50,552,379.60

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Solution

The fourth proportional to 84,564,603.60, 126,846,905.40 and 50,552,379.60 is: 75,828,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,564,603.60 : 126,846,905.40 = 50,552,379.60 : x
  2. Step 2: Convert to fraction form
    84,564,603.60/126,846,905.40 = 50,552,379.60/x
  3. Step 3: Cross multiply
    84,564,603.60x = 126,846,905.40 × 50,552,379.60
  4. Step 4: Simplify right side
    84,564,603.60x = 6,412,412,912,866,090
  5. Step 5: Solve for x
    x = 6,412,412,912,866,090/84,564,603.60
  6. Step 6: Final answer
    x = 75,828,569.40

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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.