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Finding the Fourth Proportional to 308,853,451.04, 463,279,804.74 and 78,822,560.30

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Solution

The fourth proportional to 308,853,451.04, 463,279,804.74 and 78,822,560.30 is: 118,233,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,853,451.04 : 463,279,804.74 = 78,822,560.30 : x
  2. Step 2: Convert to fraction form
    308,853,451.04/463,279,804.74 = 78,822,560.30/x
  3. Step 3: Cross multiply
    308,853,451.04x = 463,279,804.74 × 78,822,560.30
  4. Step 4: Simplify right side
    308,853,451.04x = 36,516,900,342,574,480
  5. Step 5: Solve for x
    x = 36,516,900,342,574,480/308,853,451.04
  6. Step 6: Final answer
    x = 118,233,745.55

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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.