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Finding the Fourth Proportional to 230,412.15, 345,618.23 and 230,412.15

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Solution

The fourth proportional to 230,412.15, 345,618.23 and 230,412.15 is: 345,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,412.15 : 345,618.23 = 230,412.15 : x
  2. Step 2: Convert to fraction form
    230,412.15/345,618.23 = 230,412.15/x
  3. Step 3: Cross multiply
    230,412.15x = 345,618.23 × 230,412.15
  4. Step 4: Simplify right side
    230,412.15x = 79,634,638,301.43
  5. Step 5: Solve for x
    x = 79,634,638,301.43/230,412.15
  6. Step 6: Final answer
    x = 345,618.23

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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.