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Finding the Fourth Proportional to 186,189,092.80, 279,409,610.40 and 83,900,478.40

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Solution

The fourth proportional to 186,189,092.80, 279,409,610.40 and 83,900,478.40 is: 125,907,482.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,189,092.80 : 279,409,610.40 = 83,900,478.40 : x
  2. Step 2: Convert to fraction form
    186,189,092.80/279,409,610.40 = 83,900,478.40/x
  3. Step 3: Cross multiply
    186,189,092.80x = 279,409,610.40 × 83,900,478.40
  4. Step 4: Simplify right side
    186,189,092.80x = 23,442,599,982,117,616
  5. Step 5: Solve for x
    x = 23,442,599,982,117,616/186,189,092.80
  6. Step 6: Final answer
    x = 125,907,482.71

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1.5x scale

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.