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Finding the Fourth Proportional to 119,390.80, 179,028.72 and 69,482.08

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Solution

The fourth proportional to 119,390.80, 179,028.72 and 69,482.08 is: 104,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,390.80 : 179,028.72 = 69,482.08 : x
  2. Step 2: Convert to fraction form
    119,390.80/179,028.72 = 69,482.08/x
  3. Step 3: Cross multiply
    119,390.80x = 179,028.72 × 69,482.08
  4. Step 4: Simplify right side
    119,390.80x = 12,439,287,845.34
  5. Step 5: Solve for x
    x = 12,439,287,845.34/119,390.80
  6. Step 6: Final answer
    x = 104,189.67

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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.