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Finding the Fourth Proportional to 64,808.80, 97,064.14 and 54,087.64

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Solution

The fourth proportional to 64,808.80, 97,064.14 and 54,087.64 is: 81,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,808.80 : 97,064.14 = 54,087.64 : x
  2. Step 2: Convert to fraction form
    64,808.80/97,064.14 = 54,087.64/x
  3. Step 3: Cross multiply
    64,808.80x = 97,064.14 × 54,087.64
  4. Step 4: Simplify right side
    64,808.80x = 5,249,970,261.23
  5. Step 5: Solve for x
    x = 5,249,970,261.23/64,808.80
  6. Step 6: Final answer
    x = 81,007.06

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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.