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Finding the Fourth Proportional to 407,548.55, 611,126.19 and 170,827.67

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Solution

The fourth proportional to 407,548.55, 611,126.19 and 170,827.67 is: 256,159.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,548.55 : 611,126.19 = 170,827.67 : x
  2. Step 2: Convert to fraction form
    407,548.55/611,126.19 = 170,827.67/x
  3. Step 3: Cross multiply
    407,548.55x = 611,126.19 × 170,827.67
  4. Step 4: Simplify right side
    407,548.55x = 104,397,260,058.05
  5. Step 5: Solve for x
    x = 104,397,260,058.05/407,548.55
  6. Step 6: Final answer
    x = 256,159.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.