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Finding the Fourth Proportional to 223,126.77, 307,911.79 and 126,328.13

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Solution

The fourth proportional to 223,126.77, 307,911.79 and 126,328.13 is: 174,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,126.77 : 307,911.79 = 126,328.13 : x
  2. Step 2: Convert to fraction form
    223,126.77/307,911.79 = 126,328.13/x
  3. Step 3: Cross multiply
    223,126.77x = 307,911.79 × 126,328.13
  4. Step 4: Simplify right side
    223,126.77x = 38,897,920,586.32
  5. Step 5: Solve for x
    x = 38,897,920,586.32/223,126.77
  6. Step 6: Final answer
    x = 174,331.03

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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.