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Finding the Fourth Proportional to 73,145.51, 109,646.85 and 35,704.07

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Solution

The fourth proportional to 73,145.51, 109,646.85 and 35,704.07 is: 53,521.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,145.51 : 109,646.85 = 35,704.07 : x
  2. Step 2: Convert to fraction form
    73,145.51/109,646.85 = 35,704.07/x
  3. Step 3: Cross multiply
    73,145.51x = 109,646.85 × 35,704.07
  4. Step 4: Simplify right side
    73,145.51x = 3,914,838,259.45
  5. Step 5: Solve for x
    x = 3,914,838,259.45/73,145.51
  6. Step 6: Final answer
    x = 53,521.24

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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.