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Finding the Fourth Proportional to 133,641,109.80, 200,461,664.70 and 65,616,661.80

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Solution

The fourth proportional to 133,641,109.80, 200,461,664.70 and 65,616,661.80 is: 98,424,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,641,109.80 : 200,461,664.70 = 65,616,661.80 : x
  2. Step 2: Convert to fraction form
    133,641,109.80/200,461,664.70 = 65,616,661.80/x
  3. Step 3: Cross multiply
    133,641,109.80x = 200,461,664.70 × 65,616,661.80
  4. Step 4: Simplify right side
    133,641,109.80x = 13,153,625,256,484,898
  5. Step 5: Solve for x
    x = 13,153,625,256,484,898/133,641,109.80
  6. Step 6: Final answer
    x = 98,424,992.70

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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.