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Finding the Fourth Proportional to 144,779.70, 217,172.70 and 101,909.94

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Solution

The fourth proportional to 144,779.70, 217,172.70 and 101,909.94 is: 152,867.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,779.70 : 217,172.70 = 101,909.94 : x
  2. Step 2: Convert to fraction form
    144,779.70/217,172.70 = 101,909.94/x
  3. Step 3: Cross multiply
    144,779.70x = 217,172.70 × 101,909.94
  4. Step 4: Simplify right side
    144,779.70x = 22,132,056,826.64
  5. Step 5: Solve for x
    x = 22,132,056,826.64/144,779.70
  6. Step 6: Final answer
    x = 152,867.13

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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.