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Finding the Fourth Proportional to 171,483.32, 257,238.28 and 51,530.90

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Solution

The fourth proportional to 171,483.32, 257,238.28 and 51,530.90 is: 77,300.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,483.32 : 257,238.28 = 51,530.90 : x
  2. Step 2: Convert to fraction form
    171,483.32/257,238.28 = 51,530.90/x
  3. Step 3: Cross multiply
    171,483.32x = 257,238.28 × 51,530.90
  4. Step 4: Simplify right side
    171,483.32x = 13,255,718,539.01
  5. Step 5: Solve for x
    x = 13,255,718,539.01/171,483.32
  6. Step 6: Final answer
    x = 77,300.34

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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.