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Finding the Fourth Proportional to 42,906,403.35, 64,359,605.03 and 42,906,403.35

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Solution

The fourth proportional to 42,906,403.35, 64,359,605.03 and 42,906,403.35 is: 64,359,605.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,906,403.35 : 64,359,605.03 = 42,906,403.35 : x
  2. Step 2: Convert to fraction form
    42,906,403.35/64,359,605.03 = 42,906,403.35/x
  3. Step 3: Cross multiply
    42,906,403.35x = 64,359,605.03 × 42,906,403.35
  4. Step 4: Simplify right side
    42,906,403.35x = 2,761,439,172,649,337
  5. Step 5: Solve for x
    x = 2,761,439,172,649,337/42,906,403.35
  6. Step 6: Final answer
    x = 64,359,605.03

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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.