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Finding the Fourth Proportional to 111,597.46, 154,064.46 and 86,047.83

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Solution

The fourth proportional to 111,597.46, 154,064.46 and 86,047.83 is: 118,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,597.46 : 154,064.46 = 86,047.83 : x
  2. Step 2: Convert to fraction form
    111,597.46/154,064.46 = 86,047.83/x
  3. Step 3: Cross multiply
    111,597.46x = 154,064.46 × 86,047.83
  4. Step 4: Simplify right side
    111,597.46x = 13,256,912,785.80
  5. Step 5: Solve for x
    x = 13,256,912,785.80/111,597.46
  6. Step 6: Final answer
    x = 118,792.25

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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.