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Finding the Fourth Proportional to 103,107.39, 154,642.54 and 46,934.43

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Solution

The fourth proportional to 103,107.39, 154,642.54 and 46,934.43 is: 70,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,107.39 : 154,642.54 = 46,934.43 : x
  2. Step 2: Convert to fraction form
    103,107.39/154,642.54 = 46,934.43/x
  3. Step 3: Cross multiply
    103,107.39x = 154,642.54 × 46,934.43
  4. Step 4: Simplify right side
    103,107.39x = 7,258,058,460.77
  5. Step 5: Solve for x
    x = 7,258,058,460.77/103,107.39
  6. Step 6: Final answer
    x = 70,393.20

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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.