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Finding the Fourth Proportional to 111,091.97, 153,303.13 and 63,360.70

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Solution

The fourth proportional to 111,091.97, 153,303.13 and 63,360.70 is: 87,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,091.97 : 153,303.13 = 63,360.70 : x
  2. Step 2: Convert to fraction form
    111,091.97/153,303.13 = 63,360.70/x
  3. Step 3: Cross multiply
    111,091.97x = 153,303.13 × 63,360.70
  4. Step 4: Simplify right side
    111,091.97x = 9,713,393,324.93
  5. Step 5: Solve for x
    x = 9,713,393,324.93/111,091.97
  6. Step 6: Final answer
    x = 87,435.60

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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.