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Finding the Fourth Proportional to 160,435.74, 221,424.48 and 92,439.68

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Solution

The fourth proportional to 160,435.74, 221,424.48 and 92,439.68 is: 127,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,435.74 : 221,424.48 = 92,439.68 : x
  2. Step 2: Convert to fraction form
    160,435.74/221,424.48 = 92,439.68/x
  3. Step 3: Cross multiply
    160,435.74x = 221,424.48 × 92,439.68
  4. Step 4: Simplify right side
    160,435.74x = 20,468,408,075.37
  5. Step 5: Solve for x
    x = 20,468,408,075.37/160,435.74
  6. Step 6: Final answer
    x = 127,580.10

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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.