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Finding the Fourth Proportional to 223,699.86, 308,603.72 and 133,004.21

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Solution

The fourth proportional to 223,699.86, 308,603.72 and 133,004.21 is: 183,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,699.86 : 308,603.72 = 133,004.21 : x
  2. Step 2: Convert to fraction form
    223,699.86/308,603.72 = 133,004.21/x
  3. Step 3: Cross multiply
    223,699.86x = 308,603.72 × 133,004.21
  4. Step 4: Simplify right side
    223,699.86x = 41,045,591,773.62
  5. Step 5: Solve for x
    x = 41,045,591,773.62/223,699.86
  6. Step 6: Final answer
    x = 183,485.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.