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Finding the Fourth Proportional to 358,093.51, 537,140.40 and 91,854

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Solution

The fourth proportional to 358,093.51, 537,140.40 and 91,854 is: 137,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,093.51 : 537,140.40 = 91,854 : x
  2. Step 2: Convert to fraction form
    358,093.51/537,140.40 = 91,854/x
  3. Step 3: Cross multiply
    358,093.51x = 537,140.40 × 91,854
  4. Step 4: Simplify right side
    358,093.51x = 49,338,493,957.15
  5. Step 5: Solve for x
    x = 49,338,493,957.15/358,093.51
  6. Step 6: Final answer
    x = 137,781.03

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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.