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Finding the Fourth Proportional to 163,820.92, 245,731.20 and 45,492.20

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Solution

The fourth proportional to 163,820.92, 245,731.20 and 45,492.20 is: 68,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,820.92 : 245,731.20 = 45,492.20 : x
  2. Step 2: Convert to fraction form
    163,820.92/245,731.20 = 45,492.20/x
  3. Step 3: Cross multiply
    163,820.92x = 245,731.20 × 45,492.20
  4. Step 4: Simplify right side
    163,820.92x = 11,178,852,896.64
  5. Step 5: Solve for x
    x = 11,178,852,896.64/163,820.92
  6. Step 6: Final answer
    x = 68,238.25

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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.