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Finding the Fourth Proportional to 186,639,369.60, 279,921,729.60 and 89,594,889.60

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Solution

The fourth proportional to 186,639,369.60, 279,921,729.60 and 89,594,889.60 is: 134,374,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,639,369.60 : 279,921,729.60 = 89,594,889.60 : x
  2. Step 2: Convert to fraction form
    186,639,369.60/279,921,729.60 = 89,594,889.60/x
  3. Step 3: Cross multiply
    186,639,369.60x = 279,921,729.60 × 89,594,889.60
  4. Step 4: Simplify right side
    186,639,369.60x = 25,079,556,460,153,052
  5. Step 5: Solve for x
    x = 25,079,556,460,153,052/186,639,369.60
  6. Step 6: Final answer
    x = 134,374,416.90

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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.