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Finding the Fourth Proportional to 224,678.86, 336,999.84 and 66,907.32

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Solution

The fourth proportional to 224,678.86, 336,999.84 and 66,907.32 is: 100,355.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,678.86 : 336,999.84 = 66,907.32 : x
  2. Step 2: Convert to fraction form
    224,678.86/336,999.84 = 66,907.32/x
  3. Step 3: Cross multiply
    224,678.86x = 336,999.84 × 66,907.32
  4. Step 4: Simplify right side
    224,678.86x = 22,547,754,996.53
  5. Step 5: Solve for x
    x = 22,547,754,996.53/224,678.86
  6. Step 6: Final answer
    x = 100,355.48

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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.