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Finding the Fourth Proportional to 171,665.42, 257,530.94 and 53,332.32

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Solution

The fourth proportional to 171,665.42, 257,530.94 and 53,332.32 is: 80,008.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,665.42 : 257,530.94 = 53,332.32 : x
  2. Step 2: Convert to fraction form
    171,665.42/257,530.94 = 53,332.32/x
  3. Step 3: Cross multiply
    171,665.42x = 257,530.94 × 53,332.32
  4. Step 4: Simplify right side
    171,665.42x = 13,734,722,235.32
  5. Step 5: Solve for x
    x = 13,734,722,235.32/171,665.42
  6. Step 6: Final answer
    x = 80,008.67

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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.