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Finding the Fourth Proportional to 105,366.54, 157,883.35 and 85,548.27

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Solution

The fourth proportional to 105,366.54, 157,883.35 and 85,548.27 is: 128,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,366.54 : 157,883.35 = 85,548.27 : x
  2. Step 2: Convert to fraction form
    105,366.54/157,883.35 = 85,548.27/x
  3. Step 3: Cross multiply
    105,366.54x = 157,883.35 × 85,548.27
  4. Step 4: Simplify right side
    105,366.54x = 13,506,647,454.30
  5. Step 5: Solve for x
    x = 13,506,647,454.30/105,366.54
  6. Step 6: Final answer
    x = 128,187.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.