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Finding the Fourth Proportional to 230,085.30, 345,127.95 and 171,036.30

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Solution

The fourth proportional to 230,085.30, 345,127.95 and 171,036.30 is: 256,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,085.30 : 345,127.95 = 171,036.30 : x
  2. Step 2: Convert to fraction form
    230,085.30/345,127.95 = 171,036.30/x
  3. Step 3: Cross multiply
    230,085.30x = 345,127.95 × 171,036.30
  4. Step 4: Simplify right side
    230,085.30x = 59,029,407,594.59
  5. Step 5: Solve for x
    x = 59,029,407,594.59/230,085.30
  6. Step 6: Final answer
    x = 256,554.45

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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.