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Finding the Fourth Proportional to 139,696.08, 192,776.76 and 76,032.24

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Solution

The fourth proportional to 139,696.08, 192,776.76 and 76,032.24 is: 104,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,696.08 : 192,776.76 = 76,032.24 : x
  2. Step 2: Convert to fraction form
    139,696.08/192,776.76 = 76,032.24/x
  3. Step 3: Cross multiply
    139,696.08x = 192,776.76 × 76,032.24
  4. Step 4: Simplify right side
    139,696.08x = 14,657,248,882.74
  5. Step 5: Solve for x
    x = 14,657,248,882.74/139,696.08
  6. Step 6: Final answer
    x = 104,922.41

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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.