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Finding the Fourth Proportional to 188,460.45, 260,072.51 and 103,575.69

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Solution

The fourth proportional to 188,460.45, 260,072.51 and 103,575.69 is: 142,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,460.45 : 260,072.51 = 103,575.69 : x
  2. Step 2: Convert to fraction form
    188,460.45/260,072.51 = 103,575.69/x
  3. Step 3: Cross multiply
    188,460.45x = 260,072.51 × 103,575.69
  4. Step 4: Simplify right side
    188,460.45x = 26,937,189,155.40
  5. Step 5: Solve for x
    x = 26,937,189,155.40/188,460.45
  6. Step 6: Final answer
    x = 142,932.85

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1.5x scale

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.