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Finding the Fourth Proportional to 259,141.55, 388,745.06 and 101,349.50

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Solution

The fourth proportional to 259,141.55, 388,745.06 and 101,349.50 is: 152,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,141.55 : 388,745.06 = 101,349.50 : x
  2. Step 2: Convert to fraction form
    259,141.55/388,745.06 = 101,349.50/x
  3. Step 3: Cross multiply
    259,141.55x = 388,745.06 × 101,349.50
  4. Step 4: Simplify right side
    259,141.55x = 39,399,115,008.00
  5. Step 5: Solve for x
    x = 39,399,115,008.00/259,141.55
  6. Step 6: Final answer
    x = 152,037.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.