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Finding the Fourth Proportional to 99,207.54, 136,907.58 and 53,886.06

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Solution

The fourth proportional to 99,207.54, 136,907.58 and 53,886.06 is: 74,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,207.54 : 136,907.58 = 53,886.06 : x
  2. Step 2: Convert to fraction form
    99,207.54/136,907.58 = 53,886.06/x
  3. Step 3: Cross multiply
    99,207.54x = 136,907.58 × 53,886.06
  4. Step 4: Simplify right side
    99,207.54x = 7,377,410,070.33
  5. Step 5: Solve for x
    x = 7,377,410,070.33/99,207.54
  6. Step 6: Final answer
    x = 74,363.40

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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.