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Finding the Fourth Proportional to 164,655,861.40, 246,983,792.10 and 43,487,313.40

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Solution

The fourth proportional to 164,655,861.40, 246,983,792.10 and 43,487,313.40 is: 65,230,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,655,861.40 : 246,983,792.10 = 43,487,313.40 : x
  2. Step 2: Convert to fraction form
    164,655,861.40/246,983,792.10 = 43,487,313.40/x
  3. Step 3: Cross multiply
    164,655,861.40x = 246,983,792.10 × 43,487,313.40
  4. Step 4: Simplify right side
    164,655,861.40x = 10,740,661,571,773,144
  5. Step 5: Solve for x
    x = 10,740,661,571,773,144/164,655,861.40
  6. Step 6: Final answer
    x = 65,230,970.10

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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.