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Finding the Fourth Proportional to 60,578,465.40, 90,899,190.90 and 26,503,255.80

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Solution

The fourth proportional to 60,578,465.40, 90,899,190.90 and 26,503,255.80 is: 39,768,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,578,465.40 : 90,899,190.90 = 26,503,255.80 : x
  2. Step 2: Convert to fraction form
    60,578,465.40/90,899,190.90 = 26,503,255.80/x
  3. Step 3: Cross multiply
    60,578,465.40x = 90,899,190.90 × 26,503,255.80
  4. Step 4: Simplify right side
    60,578,465.40x = 2,409,124,508,435,732.50
  5. Step 5: Solve for x
    x = 2,409,124,508,435,732.50/60,578,465.40
  6. Step 6: Final answer
    x = 39,768,661.89

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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.