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Finding the Fourth Proportional to 262,247,893.80, 393,371,840.70 and 248,810,965.80

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Solution

The fourth proportional to 262,247,893.80, 393,371,840.70 and 248,810,965.80 is: 373,216,448.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,247,893.80 : 393,371,840.70 = 248,810,965.80 : x
  2. Step 2: Convert to fraction form
    262,247,893.80/393,371,840.70 = 248,810,965.80/x
  3. Step 3: Cross multiply
    262,247,893.80x = 393,371,840.70 × 248,810,965.80
  4. Step 4: Simplify right side
    262,247,893.80x = 97,875,227,603,090,752
  5. Step 5: Solve for x
    x = 97,875,227,603,090,752/262,247,893.80
  6. Step 6: Final answer
    x = 373,216,448.70

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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.