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Finding the Fourth Proportional to 536,903.42, 805,336.61 and 137,548.11

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Solution

The fourth proportional to 536,903.42, 805,336.61 and 137,548.11 is: 206,317.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,903.42 : 805,336.61 = 137,548.11 : x
  2. Step 2: Convert to fraction form
    536,903.42/805,336.61 = 137,548.11/x
  3. Step 3: Cross multiply
    536,903.42x = 805,336.61 × 137,548.11
  4. Step 4: Simplify right side
    536,903.42x = 110,772,527,931.57
  5. Step 5: Solve for x
    x = 110,772,527,931.57/536,903.42
  6. Step 6: Final answer
    x = 206,317.42

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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.