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Finding the Fourth Proportional to 443,867.12, 612,536.52 and 242,663.12

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Solution

The fourth proportional to 443,867.12, 612,536.52 and 242,663.12 is: 334,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,867.12 : 612,536.52 = 242,663.12 : x
  2. Step 2: Convert to fraction form
    443,867.12/612,536.52 = 242,663.12/x
  3. Step 3: Cross multiply
    443,867.12x = 612,536.52 × 242,663.12
  4. Step 4: Simplify right side
    443,867.12x = 148,640,023,057.14
  5. Step 5: Solve for x
    x = 148,640,023,057.14/443,867.12
  6. Step 6: Final answer
    x = 334,875.05

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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.