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Finding the Fourth Proportional to 99,126.88, 136,795.22 and 53,804.87

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Solution

The fourth proportional to 99,126.88, 136,795.22 and 53,804.87 is: 74,250.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,126.88 : 136,795.22 = 53,804.87 : x
  2. Step 2: Convert to fraction form
    99,126.88/136,795.22 = 53,804.87/x
  3. Step 3: Cross multiply
    99,126.88x = 136,795.22 × 53,804.87
  4. Step 4: Simplify right side
    99,126.88x = 7,360,249,028.72
  5. Step 5: Solve for x
    x = 7,360,249,028.72/99,126.88
  6. Step 6: Final answer
    x = 74,250.79

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1.5x scale

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.