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Finding the Fourth Proportional to 171,681.70, 257,522.55 and 168,765.70

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Solution

The fourth proportional to 171,681.70, 257,522.55 and 168,765.70 is: 253,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,681.70 : 257,522.55 = 168,765.70 : x
  2. Step 2: Convert to fraction form
    171,681.70/257,522.55 = 168,765.70/x
  3. Step 3: Cross multiply
    171,681.70x = 257,522.55 × 168,765.70
  4. Step 4: Simplify right side
    171,681.70x = 43,460,973,416.54
  5. Step 5: Solve for x
    x = 43,460,973,416.54/171,681.70
  6. Step 6: Final answer
    x = 253,148.55

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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.