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Finding the Fourth Proportional to 219,482.19, 329,188.94 and 69,702.76

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Solution

The fourth proportional to 219,482.19, 329,188.94 and 69,702.76 is: 104,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,482.19 : 329,188.94 = 69,702.76 : x
  2. Step 2: Convert to fraction form
    219,482.19/329,188.94 = 69,702.76/x
  3. Step 3: Cross multiply
    219,482.19x = 329,188.94 × 69,702.76
  4. Step 4: Simplify right side
    219,482.19x = 22,945,377,679.47
  5. Step 5: Solve for x
    x = 22,945,377,679.47/219,482.19
  6. Step 6: Final answer
    x = 104,543.23

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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.