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Finding the Fourth Proportional to 316,566.95, 436,859.51 and 171,372.02

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Solution

The fourth proportional to 316,566.95, 436,859.51 and 171,372.02 is: 236,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,566.95 : 436,859.51 = 171,372.02 : x
  2. Step 2: Convert to fraction form
    316,566.95/436,859.51 = 171,372.02/x
  3. Step 3: Cross multiply
    316,566.95x = 436,859.51 × 171,372.02
  4. Step 4: Simplify right side
    316,566.95x = 74,865,493,643.75
  5. Step 5: Solve for x
    x = 74,865,493,643.75/316,566.95
  6. Step 6: Final answer
    x = 236,491.82

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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.