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Finding the Fourth Proportional to 256,168.51, 353,587.62 and 148,786.81

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Solution

The fourth proportional to 256,168.51, 353,587.62 and 148,786.81 is: 205,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,168.51 : 353,587.62 = 148,786.81 : x
  2. Step 2: Convert to fraction form
    256,168.51/353,587.62 = 148,786.81/x
  3. Step 3: Cross multiply
    256,168.51x = 353,587.62 × 148,786.81
  4. Step 4: Simplify right side
    256,168.51x = 52,609,174,035.29
  5. Step 5: Solve for x
    x = 52,609,174,035.29/256,168.51
  6. Step 6: Final answer
    x = 205,369.40

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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.