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Finding the Fourth Proportional to 111,092.40, 155,840.40 and 111,092.40

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Solution

The fourth proportional to 111,092.40, 155,840.40 and 111,092.40 is: 155,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,092.40 : 155,840.40 = 111,092.40 : x
  2. Step 2: Convert to fraction form
    111,092.40/155,840.40 = 111,092.40/x
  3. Step 3: Cross multiply
    111,092.40x = 155,840.40 × 111,092.40
  4. Step 4: Simplify right side
    111,092.40x = 17,312,684,052.96
  5. Step 5: Solve for x
    x = 17,312,684,052.96/111,092.40
  6. Step 6: Final answer
    x = 155,840.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.