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Finding the Fourth Proportional to 139,514.68, 192,529.32 and 75,852.48

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Solution

The fourth proportional to 139,514.68, 192,529.32 and 75,852.48 is: 104,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,514.68 : 192,529.32 = 75,852.48 : x
  2. Step 2: Convert to fraction form
    139,514.68/192,529.32 = 75,852.48/x
  3. Step 3: Cross multiply
    139,514.68x = 192,529.32 × 75,852.48
  4. Step 4: Simplify right side
    139,514.68x = 14,603,826,394.71
  5. Step 5: Solve for x
    x = 14,603,826,394.71/139,514.68
  6. Step 6: Final answer
    x = 104,675.91

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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.