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Finding the Fourth Proportional to 187,668,727.37, 281,549,978.86 and 132,444,389.54

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Solution

The fourth proportional to 187,668,727.37, 281,549,978.86 and 132,444,389.54 is: 198,699,674.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,668,727.37 : 281,549,978.86 = 132,444,389.54 : x
  2. Step 2: Convert to fraction form
    187,668,727.37/281,549,978.86 = 132,444,389.54/x
  3. Step 3: Cross multiply
    187,668,727.37x = 281,549,978.86 × 132,444,389.54
  4. Step 4: Simplify right side
    187,668,727.37x = 37,289,715,075,112,608
  5. Step 5: Solve for x
    x = 37,289,715,075,112,608/187,668,727.37
  6. Step 6: Final answer
    x = 198,699,674.68

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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.