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Finding the Fourth Proportional to 662,447.08, 993,659.10 and 163,811.08

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Solution

The fourth proportional to 662,447.08, 993,659.10 and 163,811.08 is: 245,713.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,447.08 : 993,659.10 = 163,811.08 : x
  2. Step 2: Convert to fraction form
    662,447.08/993,659.10 = 163,811.08/x
  3. Step 3: Cross multiply
    662,447.08x = 993,659.10 × 163,811.08
  4. Step 4: Simplify right side
    662,447.08x = 162,772,370,322.83
  5. Step 5: Solve for x
    x = 162,772,370,322.83/662,447.08
  6. Step 6: Final answer
    x = 245,713.77

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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.