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Finding the Fourth Proportional to 70,654.16, 97,478.62 and 43,786.86

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Solution

The fourth proportional to 70,654.16, 97,478.62 and 43,786.86 is: 60,410.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,654.16 : 97,478.62 = 43,786.86 : x
  2. Step 2: Convert to fraction form
    70,654.16/97,478.62 = 43,786.86/x
  3. Step 3: Cross multiply
    70,654.16x = 97,478.62 × 43,786.86
  4. Step 4: Simplify right side
    70,654.16x = 4,268,282,686.93
  5. Step 5: Solve for x
    x = 4,268,282,686.93/70,654.16
  6. Step 6: Final answer
    x = 60,410.92

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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.