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Finding the Fourth Proportional to 103,483.70, 155,085.17 and 47,254.10

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Solution

The fourth proportional to 103,483.70, 155,085.17 and 47,254.10 is: 70,817.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,483.70 : 155,085.17 = 47,254.10 : x
  2. Step 2: Convert to fraction form
    103,483.70/155,085.17 = 47,254.10/x
  3. Step 3: Cross multiply
    103,483.70x = 155,085.17 × 47,254.10
  4. Step 4: Simplify right side
    103,483.70x = 7,328,409,120.00
  5. Step 5: Solve for x
    x = 7,328,409,120.00/103,483.70
  6. Step 6: Final answer
    x = 70,817.04

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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.