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Finding the Fourth Proportional to 292,080.60, 438,266.70 and 165,817.80

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Solution

The fourth proportional to 292,080.60, 438,266.70 and 165,817.80 is: 248,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,080.60 : 438,266.70 = 165,817.80 : x
  2. Step 2: Convert to fraction form
    292,080.60/438,266.70 = 165,817.80/x
  3. Step 3: Cross multiply
    292,080.60x = 438,266.70 × 165,817.80
  4. Step 4: Simplify right side
    292,080.60x = 72,672,420,007.26
  5. Step 5: Solve for x
    x = 72,672,420,007.26/292,080.60
  6. Step 6: Final answer
    x = 248,809.47

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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.