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Finding the Fourth Proportional to 171,417.36, 257,157.36 and 53,080.68

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Solution

The fourth proportional to 171,417.36, 257,157.36 and 53,080.68 is: 79,630.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,417.36 : 257,157.36 = 53,080.68 : x
  2. Step 2: Convert to fraction form
    171,417.36/257,157.36 = 53,080.68/x
  3. Step 3: Cross multiply
    171,417.36x = 257,157.36 × 53,080.68
  4. Step 4: Simplify right side
    171,417.36x = 13,650,087,535.80
  5. Step 5: Solve for x
    x = 13,650,087,535.80/171,417.36
  6. Step 6: Final answer
    x = 79,630.72

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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.