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Finding the Fourth Proportional to 181,455.98, 250,417.56 and 100,891.76

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Solution

The fourth proportional to 181,455.98, 250,417.56 and 100,891.76 is: 139,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,455.98 : 250,417.56 = 100,891.76 : x
  2. Step 2: Convert to fraction form
    181,455.98/250,417.56 = 100,891.76/x
  3. Step 3: Cross multiply
    181,455.98x = 250,417.56 × 100,891.76
  4. Step 4: Simplify right side
    181,455.98x = 25,265,068,363.31
  5. Step 5: Solve for x
    x = 25,265,068,363.31/181,455.98
  6. Step 6: Final answer
    x = 139,235.25

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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.