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Finding the Fourth Proportional to 109,735.40, 151,434.72 and 59,434.40

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Solution

The fourth proportional to 109,735.40, 151,434.72 and 59,434.40 is: 82,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,735.40 : 151,434.72 = 59,434.40 : x
  2. Step 2: Convert to fraction form
    109,735.40/151,434.72 = 59,434.40/x
  3. Step 3: Cross multiply
    109,735.40x = 151,434.72 × 59,434.40
  4. Step 4: Simplify right side
    109,735.40x = 9,000,431,722.37
  5. Step 5: Solve for x
    x = 9,000,431,722.37/109,735.40
  6. Step 6: Final answer
    x = 82,019.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.