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Finding the Fourth Proportional to 226,415.89, 312,457.15 and 124,450.77

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Solution

The fourth proportional to 226,415.89, 312,457.15 and 124,450.77 is: 171,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,415.89 : 312,457.15 = 124,450.77 : x
  2. Step 2: Convert to fraction form
    226,415.89/312,457.15 = 124,450.77/x
  3. Step 3: Cross multiply
    226,415.89x = 312,457.15 × 124,450.77
  4. Step 4: Simplify right side
    226,415.89x = 38,885,532,909.51
  5. Step 5: Solve for x
    x = 38,885,532,909.51/226,415.89
  6. Step 6: Final answer
    x = 171,743.84

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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.