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Finding the Fourth Proportional to 189,978,752.04, 262,171,182.51 and 103,058,624.04

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Solution

The fourth proportional to 189,978,752.04, 262,171,182.51 and 103,058,624.04 is: 142,221,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,978,752.04 : 262,171,182.51 = 103,058,624.04 : x
  2. Step 2: Convert to fraction form
    189,978,752.04/262,171,182.51 = 103,058,624.04/x
  3. Step 3: Cross multiply
    189,978,752.04x = 262,171,182.51 × 103,058,624.04
  4. Step 4: Simplify right side
    189,978,752.04x = 27,019,001,332,420,316
  5. Step 5: Solve for x
    x = 27,019,001,332,420,316/189,978,752.04
  6. Step 6: Final answer
    x = 142,221,174.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.