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Finding the Fourth Proportional to 353,461.86, 530,274.80 and 116,790.19

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Solution

The fourth proportional to 353,461.86, 530,274.80 and 116,790.19 is: 175,212.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,461.86 : 530,274.80 = 116,790.19 : x
  2. Step 2: Convert to fraction form
    353,461.86/530,274.80 = 116,790.19/x
  3. Step 3: Cross multiply
    353,461.86x = 530,274.80 × 116,790.19
  4. Step 4: Simplify right side
    353,461.86x = 61,930,893,610.50
  5. Step 5: Solve for x
    x = 61,930,893,610.50/353,461.86
  6. Step 6: Final answer
    x = 175,212.38

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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.