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Finding the Fourth Proportional to 76,628,337.60, 114,942,506.40 and 76,628,337.60

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Solution

The fourth proportional to 76,628,337.60, 114,942,506.40 and 76,628,337.60 is: 114,942,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,628,337.60 : 114,942,506.40 = 76,628,337.60 : x
  2. Step 2: Convert to fraction form
    76,628,337.60/114,942,506.40 = 76,628,337.60/x
  3. Step 3: Cross multiply
    76,628,337.60x = 114,942,506.40 × 76,628,337.60
  4. Step 4: Simplify right side
    76,628,337.60x = 8,807,853,185,009,360
  5. Step 5: Solve for x
    x = 8,807,853,185,009,360/76,628,337.60
  6. Step 6: Final answer
    x = 114,942,506.40

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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.