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Finding the Fourth Proportional to 326,044.80, 489,047.04 and 115,655.04

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Solution

The fourth proportional to 326,044.80, 489,047.04 and 115,655.04 is: 173,475.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,044.80 : 489,047.04 = 115,655.04 : x
  2. Step 2: Convert to fraction form
    326,044.80/489,047.04 = 115,655.04/x
  3. Step 3: Cross multiply
    326,044.80x = 489,047.04 × 115,655.04
  4. Step 4: Simplify right side
    326,044.80x = 56,560,754,973.08
  5. Step 5: Solve for x
    x = 56,560,754,973.08/326,044.80
  6. Step 6: Final answer
    x = 173,475.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.