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Finding the Fourth Proportional to 144,868,802.88, 217,324,808.88 and 47,834,760

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Solution

The fourth proportional to 144,868,802.88, 217,324,808.88 and 47,834,760 is: 71,759,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,868,802.88 : 217,324,808.88 = 47,834,760 : x
  2. Step 2: Convert to fraction form
    144,868,802.88/217,324,808.88 = 47,834,760/x
  3. Step 3: Cross multiply
    144,868,802.88x = 217,324,808.88 × 47,834,760
  4. Step 4: Simplify right side
    144,868,802.88x = 10,395,680,074,820,668
  5. Step 5: Solve for x
    x = 10,395,680,074,820,668/144,868,802.88
  6. Step 6: Final answer
    x = 71,759,273.69

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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.