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Finding the Fourth Proportional to 448,070.75, 672,237.34 and 132,536.06

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Solution

The fourth proportional to 448,070.75, 672,237.34 and 132,536.06 is: 198,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,070.75 : 672,237.34 = 132,536.06 : x
  2. Step 2: Convert to fraction form
    448,070.75/672,237.34 = 132,536.06/x
  3. Step 3: Cross multiply
    448,070.75x = 672,237.34 × 132,536.06
  4. Step 4: Simplify right side
    448,070.75x = 89,095,684,404.61
  5. Step 5: Solve for x
    x = 89,095,684,404.61/448,070.75
  6. Step 6: Final answer
    x = 198,842.90

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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.