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Finding the Fourth Proportional to 295,189.79, 442,579.23 and 130,782.92

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Solution

The fourth proportional to 295,189.79, 442,579.23 and 130,782.92 is: 196,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,189.79 : 442,579.23 = 130,782.92 : x
  2. Step 2: Convert to fraction form
    295,189.79/442,579.23 = 130,782.92/x
  3. Step 3: Cross multiply
    295,189.79x = 442,579.23 × 130,782.92
  4. Step 4: Simplify right side
    295,189.79x = 57,881,801,817.86
  5. Step 5: Solve for x
    x = 57,881,801,817.86/295,189.79
  6. Step 6: Final answer
    x = 196,083.35

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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.