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Finding the Fourth Proportional to 171,069.76, 254,800.76 and 163,394.20

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Solution

The fourth proportional to 171,069.76, 254,800.76 and 163,394.20 is: 243,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,069.76 : 254,800.76 = 163,394.20 : x
  2. Step 2: Convert to fraction form
    171,069.76/254,800.76 = 163,394.20/x
  3. Step 3: Cross multiply
    171,069.76x = 254,800.76 × 163,394.20
  4. Step 4: Simplify right side
    171,069.76x = 41,632,966,339.59
  5. Step 5: Solve for x
    x = 41,632,966,339.59/171,069.76
  6. Step 6: Final answer
    x = 243,368.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.