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Finding the Fourth Proportional to 100,852.40, 139,175.16 and 55,529.45

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Solution

The fourth proportional to 100,852.40, 139,175.16 and 55,529.45 is: 76,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,852.40 : 139,175.16 = 55,529.45 : x
  2. Step 2: Convert to fraction form
    100,852.40/139,175.16 = 55,529.45/x
  3. Step 3: Cross multiply
    100,852.40x = 139,175.16 × 55,529.45
  4. Step 4: Simplify right side
    100,852.40x = 7,728,319,392.59
  5. Step 5: Solve for x
    x = 7,728,319,392.59/100,852.40
  6. Step 6: Final answer
    x = 76,630.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.