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Finding the Fourth Proportional to 242,653.46, 363,981.06 and 74,173.12

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Solution

The fourth proportional to 242,653.46, 363,981.06 and 74,173.12 is: 111,259.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,653.46 : 363,981.06 = 74,173.12 : x
  2. Step 2: Convert to fraction form
    242,653.46/363,981.06 = 74,173.12/x
  3. Step 3: Cross multiply
    242,653.46x = 363,981.06 × 74,173.12
  4. Step 4: Simplify right side
    242,653.46x = 26,997,609,931.15
  5. Step 5: Solve for x
    x = 26,997,609,931.15/242,653.46
  6. Step 6: Final answer
    x = 111,259.94

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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.