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Finding the Fourth Proportional to 336,804,939.60, 505,207,409.40 and 118,453,547.40

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Solution

The fourth proportional to 336,804,939.60, 505,207,409.40 and 118,453,547.40 is: 177,680,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,804,939.60 : 505,207,409.40 = 118,453,547.40 : x
  2. Step 2: Convert to fraction form
    336,804,939.60/505,207,409.40 = 118,453,547.40/x
  3. Step 3: Cross multiply
    336,804,939.60x = 505,207,409.40 × 118,453,547.40
  4. Step 4: Simplify right side
    336,804,939.60x = 59,843,609,816,194,104
  5. Step 5: Solve for x
    x = 59,843,609,816,194,104/336,804,939.60
  6. Step 6: Final answer
    x = 177,680,321.10

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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.