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Finding the Fourth Proportional to 295,488,609.60, 443,232,914.40 and 90,990,112.80

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Solution

The fourth proportional to 295,488,609.60, 443,232,914.40 and 90,990,112.80 is: 136,485,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,488,609.60 : 443,232,914.40 = 90,990,112.80 : x
  2. Step 2: Convert to fraction form
    295,488,609.60/443,232,914.40 = 90,990,112.80/x
  3. Step 3: Cross multiply
    295,488,609.60x = 443,232,914.40 × 90,990,112.80
  4. Step 4: Simplify right side
    295,488,609.60x = 40,329,812,877,928,744
  5. Step 5: Solve for x
    x = 40,329,812,877,928,744/295,488,609.60
  6. Step 6: Final answer
    x = 136,485,169.20

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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.