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Finding the Fourth Proportional to 9,903,158.40, 13,873,869.60 and 9,903,158.40

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Solution

The fourth proportional to 9,903,158.40, 13,873,869.60 and 9,903,158.40 is: 13,873,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903,158.40 : 13,873,869.60 = 9,903,158.40 : x
  2. Step 2: Convert to fraction form
    9,903,158.40/13,873,869.60 = 9,903,158.40/x
  3. Step 3: Cross multiply
    9,903,158.40x = 13,873,869.60 × 9,903,158.40
  4. Step 4: Simplify right side
    9,903,158.40x = 137,395,128,269,744.64
  5. Step 5: Solve for x
    x = 137,395,128,269,744.64/9,903,158.40
  6. Step 6: Final answer
    x = 13,873,869.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.