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Finding the Fourth Proportional to 355,271.43, 532,911.37 and 99,088.42

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Solution

The fourth proportional to 355,271.43, 532,911.37 and 99,088.42 is: 148,633.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,271.43 : 532,911.37 = 99,088.42 : x
  2. Step 2: Convert to fraction form
    355,271.43/532,911.37 = 99,088.42/x
  3. Step 3: Cross multiply
    355,271.43x = 532,911.37 × 99,088.42
  4. Step 4: Simplify right side
    355,271.43x = 52,805,345,653.34
  5. Step 5: Solve for x
    x = 52,805,345,653.34/355,271.43
  6. Step 6: Final answer
    x = 148,633.81

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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.