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Finding the Fourth Proportional to 54,459,392.85, 76,434,468.75 and 54,459,392.85

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Solution

The fourth proportional to 54,459,392.85, 76,434,468.75 and 54,459,392.85 is: 76,434,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,459,392.85 : 76,434,468.75 = 54,459,392.85 : x
  2. Step 2: Convert to fraction form
    54,459,392.85/76,434,468.75 = 54,459,392.85/x
  3. Step 3: Cross multiply
    54,459,392.85x = 76,434,468.75 × 54,459,392.85
  4. Step 4: Simplify right side
    54,459,392.85x = 4,162,574,760,937,298.50
  5. Step 5: Solve for x
    x = 4,162,574,760,937,298.50/54,459,392.85
  6. Step 6: Final answer
    x = 76,434,468.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.