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Finding the Fourth Proportional to 97,343.60, 146,015.40 and 91,900.40

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Solution

The fourth proportional to 97,343.60, 146,015.40 and 91,900.40 is: 137,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,343.60 : 146,015.40 = 91,900.40 : x
  2. Step 2: Convert to fraction form
    97,343.60/146,015.40 = 91,900.40/x
  3. Step 3: Cross multiply
    97,343.60x = 146,015.40 × 91,900.40
  4. Step 4: Simplify right side
    97,343.60x = 13,418,873,666.16
  5. Step 5: Solve for x
    x = 13,418,873,666.16/97,343.60
  6. Step 6: Final answer
    x = 137,850.60

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1.5x scale

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.