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Finding the Fourth Proportional to 103,482.10, 155,223.15 and 93,640.60

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Solution

The fourth proportional to 103,482.10, 155,223.15 and 93,640.60 is: 140,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,482.10 : 155,223.15 = 93,640.60 : x
  2. Step 2: Convert to fraction form
    103,482.10/155,223.15 = 93,640.60/x
  3. Step 3: Cross multiply
    103,482.10x = 155,223.15 × 93,640.60
  4. Step 4: Simplify right side
    103,482.10x = 14,535,188,899.89
  5. Step 5: Solve for x
    x = 14,535,188,899.89/103,482.10
  6. Step 6: Final answer
    x = 140,460.90

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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.