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Finding the Fourth Proportional to 170,165.97, 234,788.88 and 143,045.16

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Solution

The fourth proportional to 170,165.97, 234,788.88 and 143,045.16 is: 197,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,165.97 : 234,788.88 = 143,045.16 : x
  2. Step 2: Convert to fraction form
    170,165.97/234,788.88 = 143,045.16/x
  3. Step 3: Cross multiply
    170,165.97x = 234,788.88 × 143,045.16
  4. Step 4: Simplify right side
    170,165.97x = 33,585,412,905.82
  5. Step 5: Solve for x
    x = 33,585,412,905.82/170,165.97
  6. Step 6: Final answer
    x = 197,368.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.