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Finding the Fourth Proportional to 53,274,143.80, 79,911,215.70 and 53,274,143.80

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Solution

The fourth proportional to 53,274,143.80, 79,911,215.70 and 53,274,143.80 is: 79,911,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,274,143.80 : 79,911,215.70 = 53,274,143.80 : x
  2. Step 2: Convert to fraction form
    53,274,143.80/79,911,215.70 = 53,274,143.80/x
  3. Step 3: Cross multiply
    53,274,143.80x = 79,911,215.70 × 53,274,143.80
  4. Step 4: Simplify right side
    53,274,143.80x = 4,257,201,596,434,617.50
  5. Step 5: Solve for x
    x = 4,257,201,596,434,617.50/53,274,143.80
  6. Step 6: Final answer
    x = 79,911,215.70

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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.