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Finding the Fourth Proportional to 151,264.56, 208,688.88 and 151,031.28

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Solution

The fourth proportional to 151,264.56, 208,688.88 and 151,031.28 is: 208,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,264.56 : 208,688.88 = 151,031.28 : x
  2. Step 2: Convert to fraction form
    151,264.56/208,688.88 = 151,031.28/x
  3. Step 3: Cross multiply
    151,264.56x = 208,688.88 × 151,031.28
  4. Step 4: Simplify right side
    151,264.56x = 31,518,548,668.17
  5. Step 5: Solve for x
    x = 31,518,548,668.17/151,264.56
  6. Step 6: Final answer
    x = 208,367.04

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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.