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Finding the Fourth Proportional to 170,678.28, 256,017.42 and 46,019.28

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Solution

The fourth proportional to 170,678.28, 256,017.42 and 46,019.28 is: 69,028.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,678.28 : 256,017.42 = 46,019.28 : x
  2. Step 2: Convert to fraction form
    170,678.28/256,017.42 = 46,019.28/x
  3. Step 3: Cross multiply
    170,678.28x = 256,017.42 × 46,019.28
  4. Step 4: Simplify right side
    170,678.28x = 11,781,737,335.86
  5. Step 5: Solve for x
    x = 11,781,737,335.86/170,678.28
  6. Step 6: Final answer
    x = 69,028.92

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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.