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Finding the Fourth Proportional to 357,180.57, 492,931.85 and 236,109.47

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Solution

The fourth proportional to 357,180.57, 492,931.85 and 236,109.47 is: 325,846.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,180.57 : 492,931.85 = 236,109.47 : x
  2. Step 2: Convert to fraction form
    357,180.57/492,931.85 = 236,109.47/x
  3. Step 3: Cross multiply
    357,180.57x = 492,931.85 × 236,109.47
  4. Step 4: Simplify right side
    357,180.57x = 116,385,874,204.41
  5. Step 5: Solve for x
    x = 116,385,874,204.41/357,180.57
  6. Step 6: Final answer
    x = 325,846.04

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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.