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Finding the Fourth Proportional to 111,089.16, 153,163.98 and 92,718.64

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Solution

The fourth proportional to 111,089.16, 153,163.98 and 92,718.64 is: 127,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,089.16 : 153,163.98 = 92,718.64 : x
  2. Step 2: Convert to fraction form
    111,089.16/153,163.98 = 92,718.64/x
  3. Step 3: Cross multiply
    111,089.16x = 153,163.98 × 92,718.64
  4. Step 4: Simplify right side
    111,089.16x = 14,201,155,922.59
  5. Step 5: Solve for x
    x = 14,201,155,922.59/111,089.16
  6. Step 6: Final answer
    x = 127,835.66

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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.