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Finding the Fourth Proportional to 99,459.37, 137,265.60 and 55,859.07

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Solution

The fourth proportional to 99,459.37, 137,265.60 and 55,859.07 is: 77,092.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,459.37 : 137,265.60 = 55,859.07 : x
  2. Step 2: Convert to fraction form
    99,459.37/137,265.60 = 55,859.07/x
  3. Step 3: Cross multiply
    99,459.37x = 137,265.60 × 55,859.07
  4. Step 4: Simplify right side
    99,459.37x = 7,667,528,758.99
  5. Step 5: Solve for x
    x = 7,667,528,758.99/99,459.37
  6. Step 6: Final answer
    x = 77,092.07

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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.