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Finding the Fourth Proportional to 208,592.20, 312,232.20 and 202,031.20

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Solution

The fourth proportional to 208,592.20, 312,232.20 and 202,031.20 is: 302,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,592.20 : 312,232.20 = 202,031.20 : x
  2. Step 2: Convert to fraction form
    208,592.20/312,232.20 = 202,031.20/x
  3. Step 3: Cross multiply
    208,592.20x = 312,232.20 × 202,031.20
  4. Step 4: Simplify right side
    208,592.20x = 63,080,646,044.64
  5. Step 5: Solve for x
    x = 63,080,646,044.64/208,592.20
  6. Step 6: Final answer
    x = 302,411.34

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1.5x scale

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.