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Finding the Fourth Proportional to 358,737.80, 538,098.06 and 109,421.96

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Solution

The fourth proportional to 358,737.80, 538,098.06 and 109,421.96 is: 164,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,737.80 : 538,098.06 = 109,421.96 : x
  2. Step 2: Convert to fraction form
    358,737.80/538,098.06 = 109,421.96/x
  3. Step 3: Cross multiply
    358,737.80x = 538,098.06 × 109,421.96
  4. Step 4: Simplify right side
    358,737.80x = 58,879,744,397.40
  5. Step 5: Solve for x
    x = 58,879,744,397.40/358,737.80
  6. Step 6: Final answer
    x = 164,130.30

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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.