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Finding the Fourth Proportional to 98,889.89, 136,468.70 and 53,567.87

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Solution

The fourth proportional to 98,889.89, 136,468.70 and 53,567.87 is: 73,924.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,889.89 : 136,468.70 = 53,567.87 : x
  2. Step 2: Convert to fraction form
    98,889.89/136,468.70 = 53,567.87/x
  3. Step 3: Cross multiply
    98,889.89x = 136,468.70 × 53,567.87
  4. Step 4: Simplify right side
    98,889.89x = 7,310,337,580.67
  5. Step 5: Solve for x
    x = 7,310,337,580.67/98,889.89
  6. Step 6: Final answer
    x = 73,924.01

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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.