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Finding the Fourth Proportional to 434,449.86, 651,765.51 and 134,922.66

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Solution

The fourth proportional to 434,449.86, 651,765.51 and 134,922.66 is: 202,412.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,449.86 : 651,765.51 = 134,922.66 : x
  2. Step 2: Convert to fraction form
    434,449.86/651,765.51 = 134,922.66/x
  3. Step 3: Cross multiply
    434,449.86x = 651,765.51 × 134,922.66
  4. Step 4: Simplify right side
    434,449.86x = 87,937,936,305.46
  5. Step 5: Solve for x
    x = 87,937,936,305.46/434,449.86
  6. Step 6: Final answer
    x = 202,412.16

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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.