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Finding the Fourth Proportional to 368,117.70, 552,181.65 and 242,561.70

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Solution

The fourth proportional to 368,117.70, 552,181.65 and 242,561.70 is: 363,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,117.70 : 552,181.65 = 242,561.70 : x
  2. Step 2: Convert to fraction form
    368,117.70/552,181.65 = 242,561.70/x
  3. Step 3: Cross multiply
    368,117.70x = 552,181.65 × 242,561.70
  4. Step 4: Simplify right side
    368,117.70x = 133,938,119,732.81
  5. Step 5: Solve for x
    x = 133,938,119,732.81/368,117.70
  6. Step 6: Final answer
    x = 363,845.91

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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.