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Finding the Fourth Proportional to 139,049.16, 191,702.22 and 110,463.66

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Solution

The fourth proportional to 139,049.16, 191,702.22 and 110,463.66 is: 152,292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,049.16 : 191,702.22 = 110,463.66 : x
  2. Step 2: Convert to fraction form
    139,049.16/191,702.22 = 110,463.66/x
  3. Step 3: Cross multiply
    139,049.16x = 191,702.22 × 110,463.66
  4. Step 4: Simplify right side
    139,049.16x = 21,176,128,851.33
  5. Step 5: Solve for x
    x = 21,176,128,851.33/139,049.16
  6. Step 6: Final answer
    x = 152,292.39

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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.