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Finding the Fourth Proportional to 201,643,262.80, 302,464,894.20 and 99,456,254.80

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Solution

The fourth proportional to 201,643,262.80, 302,464,894.20 and 99,456,254.80 is: 149,184,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,643,262.80 : 302,464,894.20 = 99,456,254.80 : x
  2. Step 2: Convert to fraction form
    201,643,262.80/302,464,894.20 = 99,456,254.80/x
  3. Step 3: Cross multiply
    201,643,262.80x = 302,464,894.20 × 99,456,254.80
  4. Step 4: Simplify right side
    201,643,262.80x = 30,082,025,585,610,240
  5. Step 5: Solve for x
    x = 30,082,025,585,610,240/201,643,262.80
  6. Step 6: Final answer
    x = 149,184,382.20

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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.