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Finding the Fourth Proportional to 347,730.80, 521,304.60 and 181,518.80

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Solution

The fourth proportional to 347,730.80, 521,304.60 and 181,518.80 is: 272,125.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,730.80 : 521,304.60 = 181,518.80 : x
  2. Step 2: Convert to fraction form
    347,730.80/521,304.60 = 181,518.80/x
  3. Step 3: Cross multiply
    347,730.80x = 521,304.60 × 181,518.80
  4. Step 4: Simplify right side
    347,730.80x = 94,626,585,426.48
  5. Step 5: Solve for x
    x = 94,626,585,426.48/347,730.80
  6. Step 6: Final answer
    x = 272,125.98

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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.