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Finding the Fourth Proportional to 319,475.46, 440,861.29 and 183,413.64

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Solution

The fourth proportional to 319,475.46, 440,861.29 and 183,413.64 is: 253,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,475.46 : 440,861.29 = 183,413.64 : x
  2. Step 2: Convert to fraction form
    319,475.46/440,861.29 = 183,413.64/x
  3. Step 3: Cross multiply
    319,475.46x = 440,861.29 × 183,413.64
  4. Step 4: Simplify right side
    319,475.46x = 80,859,973,934.00
  5. Step 5: Solve for x
    x = 80,859,973,934.00/319,475.46
  6. Step 6: Final answer
    x = 253,102.30

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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.