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Finding the Fourth Proportional to 179,386.40, 269,079.60 and 161,890.40

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Solution

The fourth proportional to 179,386.40, 269,079.60 and 161,890.40 is: 242,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,386.40 : 269,079.60 = 161,890.40 : x
  2. Step 2: Convert to fraction form
    179,386.40/269,079.60 = 161,890.40/x
  3. Step 3: Cross multiply
    179,386.40x = 269,079.60 × 161,890.40
  4. Step 4: Simplify right side
    179,386.40x = 43,561,404,075.84
  5. Step 5: Solve for x
    x = 43,561,404,075.84/179,386.40
  6. Step 6: Final answer
    x = 242,835.60

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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.