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Finding the Fourth Proportional to 230,561.94, 345,873.15 and 90,302.34

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Solution

The fourth proportional to 230,561.94, 345,873.15 and 90,302.34 is: 135,465.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,561.94 : 345,873.15 = 90,302.34 : x
  2. Step 2: Convert to fraction form
    230,561.94/345,873.15 = 90,302.34/x
  3. Step 3: Cross multiply
    230,561.94x = 345,873.15 × 90,302.34
  4. Step 4: Simplify right side
    230,561.94x = 31,233,154,788.17
  5. Step 5: Solve for x
    x = 31,233,154,788.17/230,561.94
  6. Step 6: Final answer
    x = 135,465.35

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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.