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Finding the Fourth Proportional to 434,191.32, 651,305.21 and 118,647.32

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Solution

The fourth proportional to 434,191.32, 651,305.21 and 118,647.32 is: 177,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,191.32 : 651,305.21 = 118,647.32 : x
  2. Step 2: Convert to fraction form
    434,191.32/651,305.21 = 118,647.32/x
  3. Step 3: Cross multiply
    434,191.32x = 651,305.21 × 118,647.32
  4. Step 4: Simplify right side
    434,191.32x = 77,275,613,818.77
  5. Step 5: Solve for x
    x = 77,275,613,818.77/434,191.32
  6. Step 6: Final answer
    x = 177,975.95

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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.