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Finding the Fourth Proportional to 180,309.60, 248,805.45 and 99,726.12

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Solution

The fourth proportional to 180,309.60, 248,805.45 and 99,726.12 is: 137,609.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,309.60 : 248,805.45 = 99,726.12 : x
  2. Step 2: Convert to fraction form
    180,309.60/248,805.45 = 99,726.12/x
  3. Step 3: Cross multiply
    180,309.60x = 248,805.45 × 99,726.12
  4. Step 4: Simplify right side
    180,309.60x = 24,812,402,163.35
  5. Step 5: Solve for x
    x = 24,812,402,163.35/180,309.60
  6. Step 6: Final answer
    x = 137,609.99

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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.