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Finding the Fourth Proportional to 170,974, 235,937.73 and 98,388.10

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Solution

The fourth proportional to 170,974, 235,937.73 and 98,388.10 is: 135,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,974 : 235,937.73 = 98,388.10 : x
  2. Step 2: Convert to fraction form
    170,974/235,937.73 = 98,388.10/x
  3. Step 3: Cross multiply
    170,974x = 235,937.73 × 98,388.10
  4. Step 4: Simplify right side
    170,974x = 23,213,464,973.01
  5. Step 5: Solve for x
    x = 23,213,464,973.01/170,974
  6. Step 6: Final answer
    x = 135,771.90

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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.