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Finding the Fourth Proportional to 46,338,063.60, 69,531,978.60 and 19,414,441.20

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Solution

The fourth proportional to 46,338,063.60, 69,531,978.60 and 19,414,441.20 is: 29,132,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,338,063.60 : 69,531,978.60 = 19,414,441.20 : x
  2. Step 2: Convert to fraction form
    46,338,063.60/69,531,978.60 = 19,414,441.20/x
  3. Step 3: Cross multiply
    46,338,063.60x = 69,531,978.60 × 19,414,441.20
  4. Step 4: Simplify right side
    46,338,063.60x = 1,349,924,510,049,358.25
  5. Step 5: Solve for x
    x = 1,349,924,510,049,358.25/46,338,063.60
  6. Step 6: Final answer
    x = 29,132,087.21

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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.