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Finding the Fourth Proportional to 223,313.76, 308,186.78 and 127,818.27

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Solution

The fourth proportional to 223,313.76, 308,186.78 and 127,818.27 is: 176,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,313.76 : 308,186.78 = 127,818.27 : x
  2. Step 2: Convert to fraction form
    223,313.76/308,186.78 = 127,818.27/x
  3. Step 3: Cross multiply
    223,313.76x = 308,186.78 × 127,818.27
  4. Step 4: Simplify right side
    223,313.76x = 39,391,900,417.38
  5. Step 5: Solve for x
    x = 39,391,900,417.38/223,313.76
  6. Step 6: Final answer
    x = 176,397.10

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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.