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Finding the Fourth Proportional to 185,315.45, 255,600.16 and 117,343.49

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Solution

The fourth proportional to 185,315.45, 255,600.16 and 117,343.49 is: 161,848.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,315.45 : 255,600.16 = 117,343.49 : x
  2. Step 2: Convert to fraction form
    185,315.45/255,600.16 = 117,343.49/x
  3. Step 3: Cross multiply
    185,315.45x = 255,600.16 × 117,343.49
  4. Step 4: Simplify right side
    185,315.45x = 29,993,013,247.60
  5. Step 5: Solve for x
    x = 29,993,013,247.60/185,315.45
  6. Step 6: Final answer
    x = 161,848.43

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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.