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Finding the Fourth Proportional to 316,729.58, 437,084.64 and 171,532.01

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Solution

The fourth proportional to 316,729.58, 437,084.64 and 171,532.01 is: 236,713.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,729.58 : 437,084.64 = 171,532.01 : x
  2. Step 2: Convert to fraction form
    316,729.58/437,084.64 = 171,532.01/x
  3. Step 3: Cross multiply
    316,729.58x = 437,084.64 × 171,532.01
  4. Step 4: Simplify right side
    316,729.58x = 74,974,007,932.04
  5. Step 5: Solve for x
    x = 74,974,007,932.04/316,729.58
  6. Step 6: Final answer
    x = 236,713.00

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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.