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Finding the Fourth Proportional to 161,157.92, 241,653.86 and 72,335.32

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Solution

The fourth proportional to 161,157.92, 241,653.86 and 72,335.32 is: 108,465.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,157.92 : 241,653.86 = 72,335.32 : x
  2. Step 2: Convert to fraction form
    161,157.92/241,653.86 = 72,335.32/x
  3. Step 3: Cross multiply
    161,157.92x = 241,653.86 × 72,335.32
  4. Step 4: Simplify right side
    161,157.92x = 17,480,109,292.34
  5. Step 5: Solve for x
    x = 17,480,109,292.34/161,157.92
  6. Step 6: Final answer
    x = 108,465.72

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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.