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Finding the Fourth Proportional to 97,486.60, 134,533.95 and 55,045.43

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Solution

The fourth proportional to 97,486.60, 134,533.95 and 55,045.43 is: 75,964.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,486.60 : 134,533.95 = 55,045.43 : x
  2. Step 2: Convert to fraction form
    97,486.60/134,533.95 = 55,045.43/x
  3. Step 3: Cross multiply
    97,486.60x = 134,533.95 × 55,045.43
  4. Step 4: Simplify right side
    97,486.60x = 7,405,479,463.68
  5. Step 5: Solve for x
    x = 7,405,479,463.68/97,486.60
  6. Step 6: Final answer
    x = 75,964.08

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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.