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Finding the Fourth Proportional to 171,765.63, 257,666.12 and 59,445.65

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Solution

The fourth proportional to 171,765.63, 257,666.12 and 59,445.65 is: 89,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,765.63 : 257,666.12 = 59,445.65 : x
  2. Step 2: Convert to fraction form
    171,765.63/257,666.12 = 59,445.65/x
  3. Step 3: Cross multiply
    171,765.63x = 257,666.12 × 59,445.65
  4. Step 4: Simplify right side
    171,765.63x = 15,317,128,400.82
  5. Step 5: Solve for x
    x = 15,317,128,400.82/171,765.63
  6. Step 6: Final answer
    x = 89,174.58

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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.