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Finding the Fourth Proportional to 76,090.80, 114,127.56 and 29,339.76

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Solution

The fourth proportional to 76,090.80, 114,127.56 and 29,339.76 is: 44,006.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,090.80 : 114,127.56 = 29,339.76 : x
  2. Step 2: Convert to fraction form
    76,090.80/114,127.56 = 29,339.76/x
  3. Step 3: Cross multiply
    76,090.80x = 114,127.56 × 29,339.76
  4. Step 4: Simplify right side
    76,090.80x = 3,348,475,219.79
  5. Step 5: Solve for x
    x = 3,348,475,219.79/76,090.80
  6. Step 6: Final answer
    x = 44,006.31

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1.5x scale

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.