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Finding the Fourth Proportional to 170,220.60, 254,870.10 and 133,356.60

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Solution

The fourth proportional to 170,220.60, 254,870.10 and 133,356.60 is: 199,673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,220.60 : 254,870.10 = 133,356.60 : x
  2. Step 2: Convert to fraction form
    170,220.60/254,870.10 = 133,356.60/x
  3. Step 3: Cross multiply
    170,220.60x = 254,870.10 × 133,356.60
  4. Step 4: Simplify right side
    170,220.60x = 33,988,609,977.66
  5. Step 5: Solve for x
    x = 33,988,609,977.66/170,220.60
  6. Step 6: Final answer
    x = 199,673.89

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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.