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Finding the Fourth Proportional to 98,958.84, 136,548.36 and 56,508.36

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Solution

The fourth proportional to 98,958.84, 136,548.36 and 56,508.36 is: 77,973.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,958.84 : 136,548.36 = 56,508.36 : x
  2. Step 2: Convert to fraction form
    98,958.84/136,548.36 = 56,508.36/x
  3. Step 3: Cross multiply
    98,958.84x = 136,548.36 × 56,508.36
  4. Step 4: Simplify right side
    98,958.84x = 7,716,123,884.29
  5. Step 5: Solve for x
    x = 7,716,123,884.29/98,958.84
  6. Step 6: Final answer
    x = 77,973.06

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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.