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Finding the Fourth Proportional to 143,970,559.48, 215,978,234.10 and 46,903,670.02

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Solution

The fourth proportional to 143,970,559.48, 215,978,234.10 and 46,903,670.02 is: 70,362,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,970,559.48 : 215,978,234.10 = 46,903,670.02 : x
  2. Step 2: Convert to fraction form
    143,970,559.48/215,978,234.10 = 46,903,670.02/x
  3. Step 3: Cross multiply
    143,970,559.48x = 215,978,234.10 × 46,903,670.02
  4. Step 4: Simplify right side
    143,970,559.48x = 10,130,171,823,728,712
  5. Step 5: Solve for x
    x = 10,130,171,823,728,712/143,970,559.48
  6. Step 6: Final answer
    x = 70,362,800.98

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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.