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Finding the Fourth Proportional to 294,043.50, 405,780.03 and 159,907.50

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Solution

The fourth proportional to 294,043.50, 405,780.03 and 159,907.50 is: 220,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,043.50 : 405,780.03 = 159,907.50 : x
  2. Step 2: Convert to fraction form
    294,043.50/405,780.03 = 159,907.50/x
  3. Step 3: Cross multiply
    294,043.50x = 405,780.03 × 159,907.50
  4. Step 4: Simplify right side
    294,043.50x = 64,887,270,147.23
  5. Step 5: Solve for x
    x = 64,887,270,147.23/294,043.50
  6. Step 6: Final answer
    x = 220,672.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.