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Finding the Fourth Proportional to 353,848.50, 530,862.66 and 104,530.50

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Solution

The fourth proportional to 353,848.50, 530,862.66 and 104,530.50 is: 156,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,848.50 : 530,862.66 = 104,530.50 : x
  2. Step 2: Convert to fraction form
    353,848.50/530,862.66 = 104,530.50/x
  3. Step 3: Cross multiply
    353,848.50x = 530,862.66 × 104,530.50
  4. Step 4: Simplify right side
    353,848.50x = 55,491,339,281.13
  5. Step 5: Solve for x
    x = 55,491,339,281.13/353,848.50
  6. Step 6: Final answer
    x = 156,822.31

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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.