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Finding the Fourth Proportional to 171,430.60, 257,145.90 and 60,622.60

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Solution

The fourth proportional to 171,430.60, 257,145.90 and 60,622.60 is: 90,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,430.60 : 257,145.90 = 60,622.60 : x
  2. Step 2: Convert to fraction form
    171,430.60/257,145.90 = 60,622.60/x
  3. Step 3: Cross multiply
    171,430.60x = 257,145.90 × 60,622.60
  4. Step 4: Simplify right side
    171,430.60x = 15,588,853,037.34
  5. Step 5: Solve for x
    x = 15,588,853,037.34/171,430.60
  6. Step 6: Final answer
    x = 90,933.90

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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.