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Finding the Fourth Proportional to 188,870.67, 260,563.43 and 112,374.47

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Solution

The fourth proportional to 188,870.67, 260,563.43 and 112,374.47 is: 155,030.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,870.67 : 260,563.43 = 112,374.47 : x
  2. Step 2: Convert to fraction form
    188,870.67/260,563.43 = 112,374.47/x
  3. Step 3: Cross multiply
    188,870.67x = 260,563.43 × 112,374.47
  4. Step 4: Simplify right side
    188,870.67x = 29,280,678,279.98
  5. Step 5: Solve for x
    x = 29,280,678,279.98/188,870.67
  6. Step 6: Final answer
    x = 155,030.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.