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Finding the Fourth Proportional to 353,673.28, 530,607.06 and 104,355.28

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Solution

The fourth proportional to 353,673.28, 530,607.06 and 104,355.28 is: 156,561.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,673.28 : 530,607.06 = 104,355.28 : x
  2. Step 2: Convert to fraction form
    353,673.28/530,607.06 = 104,355.28/x
  3. Step 3: Cross multiply
    353,673.28x = 530,607.06 × 104,355.28
  4. Step 4: Simplify right side
    353,673.28x = 55,371,648,316.28
  5. Step 5: Solve for x
    x = 55,371,648,316.28/353,673.28
  6. Step 6: Final answer
    x = 156,561.58

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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.