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Finding the Fourth Proportional to 316,930.16, 437,364.24 and 173,695.52

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Solution

The fourth proportional to 316,930.16, 437,364.24 and 173,695.52 is: 239,700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,930.16 : 437,364.24 = 173,695.52 : x
  2. Step 2: Convert to fraction form
    316,930.16/437,364.24 = 173,695.52/x
  3. Step 3: Cross multiply
    316,930.16x = 437,364.24 × 173,695.52
  4. Step 4: Simplify right side
    316,930.16x = 75,968,209,096.20
  5. Step 5: Solve for x
    x = 75,968,209,096.20/316,930.16
  6. Step 6: Final answer
    x = 239,700.16

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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.