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Finding the Fourth Proportional to 295,269.80, 442,818.30 and 105,708.20

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Solution

The fourth proportional to 295,269.80, 442,818.30 and 105,708.20 is: 158,531.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,269.80 : 442,818.30 = 105,708.20 : x
  2. Step 2: Convert to fraction form
    295,269.80/442,818.30 = 105,708.20/x
  3. Step 3: Cross multiply
    295,269.80x = 442,818.30 × 105,708.20
  4. Step 4: Simplify right side
    295,269.80x = 46,809,525,420.06
  5. Step 5: Solve for x
    x = 46,809,525,420.06/295,269.80
  6. Step 6: Final answer
    x = 158,531.37

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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.