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Finding the Fourth Proportional to 103,062.95, 154,393.08 and 71,036.33

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Solution

The fourth proportional to 103,062.95, 154,393.08 and 71,036.33 is: 106,415.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,062.95 : 154,393.08 = 71,036.33 : x
  2. Step 2: Convert to fraction form
    103,062.95/154,393.08 = 71,036.33/x
  3. Step 3: Cross multiply
    103,062.95x = 154,393.08 × 71,036.33
  4. Step 4: Simplify right side
    103,062.95x = 10,967,517,780.60
  5. Step 5: Solve for x
    x = 10,967,517,780.60/103,062.95
  6. Step 6: Final answer
    x = 106,415.72

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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.