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Finding the Fourth Proportional to 316,892.66, 437,322.47 and 173,651.45

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Solution

The fourth proportional to 316,892.66, 437,322.47 and 173,651.45 is: 239,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,892.66 : 437,322.47 = 173,651.45 : x
  2. Step 2: Convert to fraction form
    316,892.66/437,322.47 = 173,651.45/x
  3. Step 3: Cross multiply
    316,892.66x = 437,322.47 × 173,651.45
  4. Step 4: Simplify right side
    316,892.66x = 75,941,677,978.21
  5. Step 5: Solve for x
    x = 75,941,677,978.21/316,892.66
  6. Step 6: Final answer
    x = 239,644.80

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1.5x scale

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.