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Finding the Fourth Proportional to 103,970.94, 143,480.07 and 59,258.94

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Solution

The fourth proportional to 103,970.94, 143,480.07 and 59,258.94 is: 81,777.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,970.94 : 143,480.07 = 59,258.94 : x
  2. Step 2: Convert to fraction form
    103,970.94/143,480.07 = 59,258.94/x
  3. Step 3: Cross multiply
    103,970.94x = 143,480.07 × 59,258.94
  4. Step 4: Simplify right side
    103,970.94x = 8,502,476,859.33
  5. Step 5: Solve for x
    x = 8,502,476,859.33/103,970.94
  6. Step 6: Final answer
    x = 81,777.44

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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.