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Finding the Fourth Proportional to 70,799.94, 97,703.15 and 38,968.16

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Solution

The fourth proportional to 70,799.94, 97,703.15 and 38,968.16 is: 53,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,799.94 : 97,703.15 = 38,968.16 : x
  2. Step 2: Convert to fraction form
    70,799.94/97,703.15 = 38,968.16/x
  3. Step 3: Cross multiply
    70,799.94x = 97,703.15 × 38,968.16
  4. Step 4: Simplify right side
    70,799.94x = 3,807,311,298.35
  5. Step 5: Solve for x
    x = 3,807,311,298.35/70,799.94
  6. Step 6: Final answer
    x = 53,775.63

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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.