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Finding the Fourth Proportional to 343,125.99, 473,532.75 and 190,161

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Solution

The fourth proportional to 343,125.99, 473,532.75 and 190,161 is: 262,432.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,125.99 : 473,532.75 = 190,161 : x
  2. Step 2: Convert to fraction form
    343,125.99/473,532.75 = 190,161/x
  3. Step 3: Cross multiply
    343,125.99x = 473,532.75 × 190,161
  4. Step 4: Simplify right side
    343,125.99x = 90,047,461,272.75
  5. Step 5: Solve for x
    x = 90,047,461,272.75/343,125.99
  6. Step 6: Final answer
    x = 262,432.65

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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.