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Finding the Fourth Proportional to 369,638.59, 554,518.71 and 113,464.73

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Solution

The fourth proportional to 369,638.59, 554,518.71 and 113,464.73 is: 170,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,638.59 : 554,518.71 = 113,464.73 : x
  2. Step 2: Convert to fraction form
    369,638.59/554,518.71 = 113,464.73/x
  3. Step 3: Cross multiply
    369,638.59x = 554,518.71 × 113,464.73
  4. Step 4: Simplify right side
    369,638.59x = 62,918,312,937.50
  5. Step 5: Solve for x
    x = 62,918,312,937.50/369,638.59
  6. Step 6: Final answer
    x = 170,215.76

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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.