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Finding the Fourth Proportional to 297,053.67, 445,573.14 and 86,693.43

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Solution

The fourth proportional to 297,053.67, 445,573.14 and 86,693.43 is: 130,038.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,053.67 : 445,573.14 = 86,693.43 : x
  2. Step 2: Convert to fraction form
    297,053.67/445,573.14 = 86,693.43/x
  3. Step 3: Cross multiply
    297,053.67x = 445,573.14 × 86,693.43
  4. Step 4: Simplify right side
    297,053.67x = 38,628,263,822.47
  5. Step 5: Solve for x
    x = 38,628,263,822.47/297,053.67
  6. Step 6: Final answer
    x = 130,038.00

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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.