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Finding the Fourth Proportional to 103,670.94, 155,464.56 and 40,482.03

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Solution

The fourth proportional to 103,670.94, 155,464.56 and 40,482.03 is: 60,706.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,670.94 : 155,464.56 = 40,482.03 : x
  2. Step 2: Convert to fraction form
    103,670.94/155,464.56 = 40,482.03/x
  3. Step 3: Cross multiply
    103,670.94x = 155,464.56 × 40,482.03
  4. Step 4: Simplify right side
    103,670.94x = 6,293,520,981.86
  5. Step 5: Solve for x
    x = 6,293,520,981.86/103,670.94
  6. Step 6: Final answer
    x = 60,706.70

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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.