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Finding the Fourth Proportional to 227,575.74, 313,989.78 and 136,886.32

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Solution

The fourth proportional to 227,575.74, 313,989.78 and 136,886.32 is: 188,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,575.74 : 313,989.78 = 136,886.32 : x
  2. Step 2: Convert to fraction form
    227,575.74/313,989.78 = 136,886.32/x
  3. Step 3: Cross multiply
    227,575.74x = 313,989.78 × 136,886.32
  4. Step 4: Simplify right side
    227,575.74x = 42,980,905,501.81
  5. Step 5: Solve for x
    x = 42,980,905,501.81/227,575.74
  6. Step 6: Final answer
    x = 188,864.18

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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.