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Finding the Fourth Proportional to 228,060.15, 314,713.72 and 126,079.12

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Solution

The fourth proportional to 228,060.15, 314,713.72 and 126,079.12 is: 173,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,060.15 : 314,713.72 = 126,079.12 : x
  2. Step 2: Convert to fraction form
    228,060.15/314,713.72 = 126,079.12/x
  3. Step 3: Cross multiply
    228,060.15x = 314,713.72 × 126,079.12
  4. Step 4: Simplify right side
    228,060.15x = 39,678,828,239.13
  5. Step 5: Solve for x
    x = 39,678,828,239.13/228,060.15
  6. Step 6: Final answer
    x = 173,984.05

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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.