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Finding the Fourth Proportional to 103,353.70, 155,030.55 and 96,355.30

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Solution

The fourth proportional to 103,353.70, 155,030.55 and 96,355.30 is: 144,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,353.70 : 155,030.55 = 96,355.30 : x
  2. Step 2: Convert to fraction form
    103,353.70/155,030.55 = 96,355.30/x
  3. Step 3: Cross multiply
    103,353.70x = 155,030.55 × 96,355.30
  4. Step 4: Simplify right side
    103,353.70x = 14,938,015,154.42
  5. Step 5: Solve for x
    x = 14,938,015,154.42/103,353.70
  6. Step 6: Final answer
    x = 144,532.95

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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.