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Finding the Fourth Proportional to 64,903,553.20, 97,355,329.80 and 18,845,333.20

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Solution

The fourth proportional to 64,903,553.20, 97,355,329.80 and 18,845,333.20 is: 28,267,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,903,553.20 : 97,355,329.80 = 18,845,333.20 : x
  2. Step 2: Convert to fraction form
    64,903,553.20/97,355,329.80 = 18,845,333.20/x
  3. Step 3: Cross multiply
    64,903,553.20x = 97,355,329.80 × 18,845,333.20
  4. Step 4: Simplify right side
    64,903,553.20x = 1,834,693,628,876,889.25
  5. Step 5: Solve for x
    x = 1,834,693,628,876,889.25/64,903,553.20
  6. Step 6: Final answer
    x = 28,267,999.80

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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.