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Finding the Fourth Proportional to 535,691.66, 803,514.45 and 161,703.50

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Solution

The fourth proportional to 535,691.66, 803,514.45 and 161,703.50 is: 242,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,691.66 : 803,514.45 = 161,703.50 : x
  2. Step 2: Convert to fraction form
    535,691.66/803,514.45 = 161,703.50/x
  3. Step 3: Cross multiply
    535,691.66x = 803,514.45 × 161,703.50
  4. Step 4: Simplify right side
    535,691.66x = 129,931,098,865.58
  5. Step 5: Solve for x
    x = 129,931,098,865.58/535,691.66
  6. Step 6: Final answer
    x = 242,548.30

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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.