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Finding the Fourth Proportional to 443,999.71, 666,041.65 and 124,151.58

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Solution

The fourth proportional to 443,999.71, 666,041.65 and 124,151.58 is: 186,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,999.71 : 666,041.65 = 124,151.58 : x
  2. Step 2: Convert to fraction form
    443,999.71/666,041.65 = 124,151.58/x
  3. Step 3: Cross multiply
    443,999.71x = 666,041.65 × 124,151.58
  4. Step 4: Simplify right side
    443,999.71x = 82,690,121,372.34
  5. Step 5: Solve for x
    x = 82,690,121,372.34/443,999.71
  6. Step 6: Final answer
    x = 186,239.13

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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.