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Finding the Fourth Proportional to 118,473.82, 163,388.01 and 98,298.76

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Solution

The fourth proportional to 118,473.82, 163,388.01 and 98,298.76 is: 135,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,473.82 : 163,388.01 = 98,298.76 : x
  2. Step 2: Convert to fraction form
    118,473.82/163,388.01 = 98,298.76/x
  3. Step 3: Cross multiply
    118,473.82x = 163,388.01 × 98,298.76
  4. Step 4: Simplify right side
    118,473.82x = 16,060,838,781.87
  5. Step 5: Solve for x
    x = 16,060,838,781.87/118,473.82
  6. Step 6: Final answer
    x = 135,564.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.