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Finding the Fourth Proportional to 170,868.40, 256,302.60 and 46,209.40

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Solution

The fourth proportional to 170,868.40, 256,302.60 and 46,209.40 is: 69,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,868.40 : 256,302.60 = 46,209.40 : x
  2. Step 2: Convert to fraction form
    170,868.40/256,302.60 = 46,209.40/x
  3. Step 3: Cross multiply
    170,868.40x = 256,302.60 × 46,209.40
  4. Step 4: Simplify right side
    170,868.40x = 11,843,589,364.44
  5. Step 5: Solve for x
    x = 11,843,589,364.44/170,868.40
  6. Step 6: Final answer
    x = 69,314.10

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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.