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Finding the Fourth Proportional to 358,588.80, 537,902.64 and 134,008.20

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Solution

The fourth proportional to 358,588.80, 537,902.64 and 134,008.20 is: 201,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,588.80 : 537,902.64 = 134,008.20 : x
  2. Step 2: Convert to fraction form
    358,588.80/537,902.64 = 134,008.20/x
  3. Step 3: Cross multiply
    358,588.80x = 537,902.64 × 134,008.20
  4. Step 4: Simplify right side
    358,588.80x = 72,083,364,561.65
  5. Step 5: Solve for x
    x = 72,083,364,561.65/358,588.80
  6. Step 6: Final answer
    x = 201,019.56

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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.