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Finding the Fourth Proportional to 144,768,553.60, 217,152,830.40 and 130,435,830.40

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Solution

The fourth proportional to 144,768,553.60, 217,152,830.40 and 130,435,830.40 is: 195,653,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,768,553.60 : 217,152,830.40 = 130,435,830.40 : x
  2. Step 2: Convert to fraction form
    144,768,553.60/217,152,830.40 = 130,435,830.40/x
  3. Step 3: Cross multiply
    144,768,553.60x = 217,152,830.40 × 130,435,830.40
  4. Step 4: Simplify right side
    144,768,553.60x = 28,324,509,756,934,368
  5. Step 5: Solve for x
    x = 28,324,509,756,934,368/144,768,553.60
  6. Step 6: Final answer
    x = 195,653,745.60

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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.