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Finding the Fourth Proportional to 441,164,407.60, 661,746,611.40 and 118,048,279.60

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Solution

The fourth proportional to 441,164,407.60, 661,746,611.40 and 118,048,279.60 is: 177,072,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,164,407.60 : 661,746,611.40 = 118,048,279.60 : x
  2. Step 2: Convert to fraction form
    441,164,407.60/661,746,611.40 = 118,048,279.60/x
  3. Step 3: Cross multiply
    441,164,407.60x = 661,746,611.40 × 118,048,279.60
  4. Step 4: Simplify right side
    441,164,407.60x = 78,118,049,006,899,744
  5. Step 5: Solve for x
    x = 78,118,049,006,899,744/441,164,407.60
  6. Step 6: Final answer
    x = 177,072,419.40

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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.