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Finding the Fourth Proportional to 293,090.40, 439,635.60 and 93,409.20

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Solution

The fourth proportional to 293,090.40, 439,635.60 and 93,409.20 is: 140,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,090.40 : 439,635.60 = 93,409.20 : x
  2. Step 2: Convert to fraction form
    293,090.40/439,635.60 = 93,409.20/x
  3. Step 3: Cross multiply
    293,090.40x = 439,635.60 × 93,409.20
  4. Step 4: Simplify right side
    293,090.40x = 41,066,009,687.52
  5. Step 5: Solve for x
    x = 41,066,009,687.52/293,090.40
  6. Step 6: Final answer
    x = 140,113.80

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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.