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Finding the Fourth Proportional to 347,784.80, 521,385.60 and 181,572.80

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Solution

The fourth proportional to 347,784.80, 521,385.60 and 181,572.80 is: 272,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,784.80 : 521,385.60 = 181,572.80 : x
  2. Step 2: Convert to fraction form
    347,784.80/521,385.60 = 181,572.80/x
  3. Step 3: Cross multiply
    347,784.80x = 521,385.60 × 181,572.80
  4. Step 4: Simplify right side
    347,784.80x = 94,669,443,271.68
  5. Step 5: Solve for x
    x = 94,669,443,271.68/347,784.80
  6. Step 6: Final answer
    x = 272,206.96

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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.