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Finding the Fourth Proportional to 227,212.74, 313,678.98 and 136,590.48

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Solution

The fourth proportional to 227,212.74, 313,678.98 and 136,590.48 is: 188,570.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,212.74 : 313,678.98 = 136,590.48 : x
  2. Step 2: Convert to fraction form
    227,212.74/313,678.98 = 136,590.48/x
  3. Step 3: Cross multiply
    227,212.74x = 313,678.98 × 136,590.48
  4. Step 4: Simplify right side
    227,212.74x = 42,845,562,444.11
  5. Step 5: Solve for x
    x = 42,845,562,444.11/227,212.74
  6. Step 6: Final answer
    x = 188,570.25

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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.