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Finding the Fourth Proportional to 58,459,743.80, 81,978,010.60 and 58,459,743.80

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Solution

The fourth proportional to 58,459,743.80, 81,978,010.60 and 58,459,743.80 is: 81,978,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,459,743.80 : 81,978,010.60 = 58,459,743.80 : x
  2. Step 2: Convert to fraction form
    58,459,743.80/81,978,010.60 = 58,459,743.80/x
  3. Step 3: Cross multiply
    58,459,743.80x = 81,978,010.60 × 58,459,743.80
  4. Step 4: Simplify right side
    58,459,743.80x = 4,792,413,496,909,684
  5. Step 5: Solve for x
    x = 4,792,413,496,909,684/58,459,743.80
  6. Step 6: Final answer
    x = 81,978,010.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.