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Finding the Fourth Proportional to 170,369.97, 255,555.90 and 70,476.05

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Solution

The fourth proportional to 170,369.97, 255,555.90 and 70,476.05 is: 105,714.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,369.97 : 255,555.90 = 70,476.05 : x
  2. Step 2: Convert to fraction form
    170,369.97/255,555.90 = 70,476.05/x
  3. Step 3: Cross multiply
    170,369.97x = 255,555.90 × 70,476.05
  4. Step 4: Simplify right side
    170,369.97x = 18,010,569,108.42
  5. Step 5: Solve for x
    x = 18,010,569,108.42/170,369.97
  6. Step 6: Final answer
    x = 105,714.46

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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.