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Finding the Fourth Proportional to 170,728.98, 235,619.03 and 94,262.80

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Solution

The fourth proportional to 170,728.98, 235,619.03 and 94,262.80 is: 130,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,728.98 : 235,619.03 = 94,262.80 : x
  2. Step 2: Convert to fraction form
    170,728.98/235,619.03 = 94,262.80/x
  3. Step 3: Cross multiply
    170,728.98x = 235,619.03 × 94,262.80
  4. Step 4: Simplify right side
    170,728.98x = 22,210,109,501.08
  5. Step 5: Solve for x
    x = 22,210,109,501.08/170,728.98
  6. Step 6: Final answer
    x = 130,089.86

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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.