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Finding the Fourth Proportional to 316,367.02, 436,585.86 and 173,127.04

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Solution

The fourth proportional to 316,367.02, 436,585.86 and 173,127.04 is: 238,914.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,367.02 : 436,585.86 = 173,127.04 : x
  2. Step 2: Convert to fraction form
    316,367.02/436,585.86 = 173,127.04/x
  3. Step 3: Cross multiply
    316,367.02x = 436,585.86 × 173,127.04
  4. Step 4: Simplify right side
    316,367.02x = 75,584,817,647.65
  5. Step 5: Solve for x
    x = 75,584,817,647.65/316,367.02
  6. Step 6: Final answer
    x = 238,914.97

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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.