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Finding the Fourth Proportional to 536,659.40, 805,016.64 and 137,303.62

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Solution

The fourth proportional to 536,659.40, 805,016.64 and 137,303.62 is: 205,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,659.40 : 805,016.64 = 137,303.62 : x
  2. Step 2: Convert to fraction form
    536,659.40/805,016.64 = 137,303.62/x
  3. Step 3: Cross multiply
    536,659.40x = 805,016.64 × 137,303.62
  4. Step 4: Simplify right side
    536,659.40x = 110,531,698,832.24
  5. Step 5: Solve for x
    x = 110,531,698,832.24/536,659.40
  6. Step 6: Final answer
    x = 205,962.48

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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.