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Finding the Fourth Proportional to 170,950.94, 256,222.60 and 79,643.86

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Solution

The fourth proportional to 170,950.94, 256,222.60 and 79,643.86 is: 119,370.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,950.94 : 256,222.60 = 79,643.86 : x
  2. Step 2: Convert to fraction form
    170,950.94/256,222.60 = 79,643.86/x
  3. Step 3: Cross multiply
    170,950.94x = 256,222.60 × 79,643.86
  4. Step 4: Simplify right side
    170,950.94x = 20,406,556,485.02
  5. Step 5: Solve for x
    x = 20,406,556,485.02/170,950.94
  6. Step 6: Final answer
    x = 119,370.84

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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.