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Finding the Fourth Proportional to 223,611.30, 308,617.92 and 172,041.84

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Solution

The fourth proportional to 223,611.30, 308,617.92 and 172,041.84 is: 237,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,611.30 : 308,617.92 = 172,041.84 : x
  2. Step 2: Convert to fraction form
    223,611.30/308,617.92 = 172,041.84/x
  3. Step 3: Cross multiply
    223,611.30x = 308,617.92 × 172,041.84
  4. Step 4: Simplify right side
    223,611.30x = 53,095,194,813.77
  5. Step 5: Solve for x
    x = 53,095,194,813.77/223,611.30
  6. Step 6: Final answer
    x = 237,444.15

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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.