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Finding the Fourth Proportional to 144,620.40, 216,946.80 and 44,779.80

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Solution

The fourth proportional to 144,620.40, 216,946.80 and 44,779.80 is: 67,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,620.40 : 216,946.80 = 44,779.80 : x
  2. Step 2: Convert to fraction form
    144,620.40/216,946.80 = 44,779.80/x
  3. Step 3: Cross multiply
    144,620.40x = 216,946.80 × 44,779.80
  4. Step 4: Simplify right side
    144,620.40x = 9,714,834,314.64
  5. Step 5: Solve for x
    x = 9,714,834,314.64/144,620.40
  6. Step 6: Final answer
    x = 67,174.72

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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.