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Finding the Fourth Proportional to 170,117.76, 255,188.94 and 51,789.24

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Solution

The fourth proportional to 170,117.76, 255,188.94 and 51,789.24 is: 77,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,117.76 : 255,188.94 = 51,789.24 : x
  2. Step 2: Convert to fraction form
    170,117.76/255,188.94 = 51,789.24/x
  3. Step 3: Cross multiply
    170,117.76x = 255,188.94 × 51,789.24
  4. Step 4: Simplify right side
    170,117.76x = 13,216,041,259.01
  5. Step 5: Solve for x
    x = 13,216,041,259.01/170,117.76
  6. Step 6: Final answer
    x = 77,687.60

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1.5x scale

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.