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Finding the Fourth Proportional to 343,674.72, 515,520.72 and 94,356

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Solution

The fourth proportional to 343,674.72, 515,520.72 and 94,356 is: 141,536.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,674.72 : 515,520.72 = 94,356 : x
  2. Step 2: Convert to fraction form
    343,674.72/515,520.72 = 94,356/x
  3. Step 3: Cross multiply
    343,674.72x = 515,520.72 × 94,356
  4. Step 4: Simplify right side
    343,674.72x = 48,642,473,056.32
  5. Step 5: Solve for x
    x = 48,642,473,056.32/343,674.72
  6. Step 6: Final answer
    x = 141,536.37

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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.