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Finding the Fourth Proportional to 139,195.95, 192,094.10 and 75,533.77

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Solution

The fourth proportional to 139,195.95, 192,094.10 and 75,533.77 is: 104,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,195.95 : 192,094.10 = 75,533.77 : x
  2. Step 2: Convert to fraction form
    139,195.95/192,094.10 = 75,533.77/x
  3. Step 3: Cross multiply
    139,195.95x = 192,094.10 × 75,533.77
  4. Step 4: Simplify right side
    139,195.95x = 14,509,591,567.76
  5. Step 5: Solve for x
    x = 14,509,591,567.76/139,195.95
  6. Step 6: Final answer
    x = 104,238.60

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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.