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Finding the Fourth Proportional to 254,369.55, 351,031.32 and 158,931.60

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Solution

The fourth proportional to 254,369.55, 351,031.32 and 158,931.60 is: 219,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,369.55 : 351,031.32 = 158,931.60 : x
  2. Step 2: Convert to fraction form
    254,369.55/351,031.32 = 158,931.60/x
  3. Step 3: Cross multiply
    254,369.55x = 351,031.32 × 158,931.60
  4. Step 4: Simplify right side
    254,369.55x = 55,789,969,337.71
  5. Step 5: Solve for x
    x = 55,789,969,337.71/254,369.55
  6. Step 6: Final answer
    x = 219,326.45

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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.