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Finding the Fourth Proportional to 171,622.90, 257,434.35 and 97,894.90

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Solution

The fourth proportional to 171,622.90, 257,434.35 and 97,894.90 is: 146,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,622.90 : 257,434.35 = 97,894.90 : x
  2. Step 2: Convert to fraction form
    171,622.90/257,434.35 = 97,894.90/x
  3. Step 3: Cross multiply
    171,622.90x = 257,434.35 × 97,894.90
  4. Step 4: Simplify right side
    171,622.90x = 25,201,509,949.82
  5. Step 5: Solve for x
    x = 25,201,509,949.82/171,622.90
  6. Step 6: Final answer
    x = 146,842.35

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Similar ratio
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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.