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Finding the Fourth Proportional to 170,873.82, 235,788.30 and 99,268.92

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Solution

The fourth proportional to 170,873.82, 235,788.30 and 99,268.92 is: 136,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,873.82 : 235,788.30 = 99,268.92 : x
  2. Step 2: Convert to fraction form
    170,873.82/235,788.30 = 99,268.92/x
  3. Step 3: Cross multiply
    170,873.82x = 235,788.30 × 99,268.92
  4. Step 4: Simplify right side
    170,873.82x = 23,406,449,889.64
  5. Step 5: Solve for x
    x = 23,406,449,889.64/170,873.82
  6. Step 6: Final answer
    x = 136,980.90

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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.