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Finding the Fourth Proportional to 69,902,402.40, 104,853,603.60 and 47,059,624.80

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Solution

The fourth proportional to 69,902,402.40, 104,853,603.60 and 47,059,624.80 is: 70,589,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,902,402.40 : 104,853,603.60 = 47,059,624.80 : x
  2. Step 2: Convert to fraction form
    69,902,402.40/104,853,603.60 = 47,059,624.80/x
  3. Step 3: Cross multiply
    69,902,402.40x = 104,853,603.60 × 47,059,624.80
  4. Step 4: Simplify right side
    69,902,402.40x = 4,934,371,244,343,929
  5. Step 5: Solve for x
    x = 4,934,371,244,343,929/69,902,402.40
  6. Step 6: Final answer
    x = 70,589,437.20

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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.