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Finding the Fourth Proportional to 91,258.99, 136,697.55 and 73,393.08

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Solution

The fourth proportional to 91,258.99, 136,697.55 and 73,393.08 is: 109,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,258.99 : 136,697.55 = 73,393.08 : x
  2. Step 2: Convert to fraction form
    91,258.99/136,697.55 = 73,393.08/x
  3. Step 3: Cross multiply
    91,258.99x = 136,697.55 × 73,393.08
  4. Step 4: Simplify right side
    91,258.99x = 10,032,653,172.50
  5. Step 5: Solve for x
    x = 10,032,653,172.50/91,258.99
  6. Step 6: Final answer
    x = 109,936.05

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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.