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Finding the Fourth Proportional to 98,291.04, 135,641.64 and 53,579.04

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Solution

The fourth proportional to 98,291.04, 135,641.64 and 53,579.04 is: 73,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,291.04 : 135,641.64 = 53,579.04 : x
  2. Step 2: Convert to fraction form
    98,291.04/135,641.64 = 53,579.04/x
  3. Step 3: Cross multiply
    98,291.04x = 135,641.64 × 53,579.04
  4. Step 4: Simplify right side
    98,291.04x = 7,267,548,855.23
  5. Step 5: Solve for x
    x = 7,267,548,855.23/98,291.04
  6. Step 6: Final answer
    x = 73,939.08

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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.