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Finding the Fourth Proportional to 114,624,009.60, 171,936,014.40 and 73,809,340.80

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Solution

The fourth proportional to 114,624,009.60, 171,936,014.40 and 73,809,340.80 is: 110,714,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,624,009.60 : 171,936,014.40 = 73,809,340.80 : x
  2. Step 2: Convert to fraction form
    114,624,009.60/171,936,014.40 = 73,809,340.80/x
  3. Step 3: Cross multiply
    114,624,009.60x = 171,936,014.40 × 73,809,340.80
  4. Step 4: Simplify right side
    114,624,009.60x = 12,690,483,882,643,308
  5. Step 5: Solve for x
    x = 12,690,483,882,643,308/114,624,009.60
  6. Step 6: Final answer
    x = 110,714,011.20

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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.