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Finding the Fourth Proportional to 316,549.61, 436,828.51 and 173,301.11

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Solution

The fourth proportional to 316,549.61, 436,828.51 and 173,301.11 is: 239,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,549.61 : 436,828.51 = 173,301.11 : x
  2. Step 2: Convert to fraction form
    316,549.61/436,828.51 = 173,301.11/x
  3. Step 3: Cross multiply
    316,549.61x = 436,828.51 × 173,301.11
  4. Step 4: Simplify right side
    316,549.61x = 75,702,865,662.65
  5. Step 5: Solve for x
    x = 75,702,865,662.65/316,549.61
  6. Step 6: Final answer
    x = 239,150.08

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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.