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Finding the Fourth Proportional to 179,779.40, 269,669.12 and 168,698.60

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Solution

The fourth proportional to 179,779.40, 269,669.12 and 168,698.60 is: 253,047.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,779.40 : 269,669.12 = 168,698.60 : x
  2. Step 2: Convert to fraction form
    179,779.40/269,669.12 = 168,698.60/x
  3. Step 3: Cross multiply
    179,779.40x = 269,669.12 × 168,698.60
  4. Step 4: Simplify right side
    179,779.40x = 45,492,803,007.23
  5. Step 5: Solve for x
    x = 45,492,803,007.23/179,779.40
  6. Step 6: Final answer
    x = 253,047.92

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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.