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Finding the Fourth Proportional to 171,570.85, 257,388.64 and 64,986.73

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Solution

The fourth proportional to 171,570.85, 257,388.64 and 64,986.73 is: 97,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,570.85 : 257,388.64 = 64,986.73 : x
  2. Step 2: Convert to fraction form
    171,570.85/257,388.64 = 64,986.73/x
  3. Step 3: Cross multiply
    171,570.85x = 257,388.64 × 64,986.73
  4. Step 4: Simplify right side
    171,570.85x = 16,726,845,246.81
  5. Step 5: Solve for x
    x = 16,726,845,246.81/171,570.85
  6. Step 6: Final answer
    x = 97,492.35

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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.