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Finding the Fourth Proportional to 170,728.80, 235,618.80 and 94,262.64

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Solution

The fourth proportional to 170,728.80, 235,618.80 and 94,262.64 is: 130,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,728.80 : 235,618.80 = 94,262.64 : x
  2. Step 2: Convert to fraction form
    170,728.80/235,618.80 = 94,262.64/x
  3. Step 3: Cross multiply
    170,728.80x = 235,618.80 × 94,262.64
  4. Step 4: Simplify right side
    170,728.80x = 22,210,050,121.63
  5. Step 5: Solve for x
    x = 22,210,050,121.63/170,728.80
  6. Step 6: Final answer
    x = 130,089.65

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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.