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Finding the Fourth Proportional to 508,008.36, 762,044.20 and 134,031.72

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Solution

The fourth proportional to 508,008.36, 762,044.20 and 134,031.72 is: 201,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,008.36 : 762,044.20 = 134,031.72 : x
  2. Step 2: Convert to fraction form
    508,008.36/762,044.20 = 134,031.72/x
  3. Step 3: Cross multiply
    508,008.36x = 762,044.20 × 134,031.72
  4. Step 4: Simplify right side
    508,008.36x = 102,138,094,842.02
  5. Step 5: Solve for x
    x = 102,138,094,842.02/508,008.36
  6. Step 6: Final answer
    x = 201,055.93

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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.