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Finding the Fourth Proportional to 534,798.58, 802,199.25 and 135,439.40

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Solution

The fourth proportional to 534,798.58, 802,199.25 and 135,439.40 is: 203,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,798.58 : 802,199.25 = 135,439.40 : x
  2. Step 2: Convert to fraction form
    534,798.58/802,199.25 = 135,439.40/x
  3. Step 3: Cross multiply
    534,798.58x = 802,199.25 × 135,439.40
  4. Step 4: Simplify right side
    534,798.58x = 108,649,385,100.45
  5. Step 5: Solve for x
    x = 108,649,385,100.45/534,798.58
  6. Step 6: Final answer
    x = 203,159.45

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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.