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Finding the Fourth Proportional to 281,963.97, 423,111.20 and 113,458.05

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Solution

The fourth proportional to 281,963.97, 423,111.20 and 113,458.05 is: 170,253.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,963.97 : 423,111.20 = 113,458.05 : x
  2. Step 2: Convert to fraction form
    281,963.97/423,111.20 = 113,458.05/x
  3. Step 3: Cross multiply
    281,963.97x = 423,111.20 × 113,458.05
  4. Step 4: Simplify right side
    281,963.97x = 48,005,371,117.87
  5. Step 5: Solve for x
    x = 48,005,371,117.87/281,963.97
  6. Step 6: Final answer
    x = 170,253.57

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1.5x scale

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.