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Finding the Fourth Proportional to 316,168.59, 436,312.94 and 178,349.25

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Solution

The fourth proportional to 316,168.59, 436,312.94 and 178,349.25 is: 246,122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,168.59 : 436,312.94 = 178,349.25 : x
  2. Step 2: Convert to fraction form
    316,168.59/436,312.94 = 178,349.25/x
  3. Step 3: Cross multiply
    316,168.59x = 436,312.94 × 178,349.25
  4. Step 4: Simplify right side
    316,168.59x = 77,816,084,722.55
  5. Step 5: Solve for x
    x = 77,816,084,722.55/316,168.59
  6. Step 6: Final answer
    x = 246,122.12

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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.