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Finding the Fourth Proportional to 171,678.95, 257,632.68 and 70,559.93

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Solution

The fourth proportional to 171,678.95, 257,632.68 and 70,559.93 is: 105,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,678.95 : 257,632.68 = 70,559.93 : x
  2. Step 2: Convert to fraction form
    171,678.95/257,632.68 = 70,559.93/x
  3. Step 3: Cross multiply
    171,678.95x = 257,632.68 × 70,559.93
  4. Step 4: Simplify right side
    171,678.95x = 18,178,542,578.35
  5. Step 5: Solve for x
    x = 18,178,542,578.35/171,678.95
  6. Step 6: Final answer
    x = 105,886.85

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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.