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Finding the Fourth Proportional to 312,466.88, 468,700.97 and 112,928.18

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Solution

The fourth proportional to 312,466.88, 468,700.97 and 112,928.18 is: 169,392.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,466.88 : 468,700.97 = 112,928.18 : x
  2. Step 2: Convert to fraction form
    312,466.88/468,700.97 = 112,928.18/x
  3. Step 3: Cross multiply
    312,466.88x = 468,700.97 × 112,928.18
  4. Step 4: Simplify right side
    312,466.88x = 52,929,544,598.19
  5. Step 5: Solve for x
    x = 52,929,544,598.19/312,466.88
  6. Step 6: Final answer
    x = 169,392.49

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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.