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Finding the Fourth Proportional to 189,467,999.60, 284,201,999.40 and 45,860,831.60

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Solution

The fourth proportional to 189,467,999.60, 284,201,999.40 and 45,860,831.60 is: 68,791,247.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,467,999.60 : 284,201,999.40 = 45,860,831.60 : x
  2. Step 2: Convert to fraction form
    189,467,999.60/284,201,999.40 = 45,860,831.60/x
  3. Step 3: Cross multiply
    189,467,999.60x = 284,201,999.40 × 45,860,831.60
  4. Step 4: Simplify right side
    189,467,999.60x = 13,033,740,034,866,700
  5. Step 5: Solve for x
    x = 13,033,740,034,866,700/189,467,999.60
  6. Step 6: Final answer
    x = 68,791,247.40

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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.