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Finding the Fourth Proportional to 536,909.95, 805,346.29 and 137,554.71

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Solution

The fourth proportional to 536,909.95, 805,346.29 and 137,554.71 is: 206,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,909.95 : 805,346.29 = 137,554.71 : x
  2. Step 2: Convert to fraction form
    536,909.95/805,346.29 = 137,554.71/x
  3. Step 3: Cross multiply
    536,909.95x = 805,346.29 × 137,554.71
  4. Step 4: Simplify right side
    536,909.95x = 110,779,175,370.53
  5. Step 5: Solve for x
    x = 110,779,175,370.53/536,909.95
  6. Step 6: Final answer
    x = 206,327.29

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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.