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Finding the Fourth Proportional to 495,636.66, 743,457.42 and 121,659.66

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Solution

The fourth proportional to 495,636.66, 743,457.42 and 121,659.66 is: 182,490.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,636.66 : 743,457.42 = 121,659.66 : x
  2. Step 2: Convert to fraction form
    495,636.66/743,457.42 = 121,659.66/x
  3. Step 3: Cross multiply
    495,636.66x = 743,457.42 × 121,659.66
  4. Step 4: Simplify right side
    495,636.66x = 90,448,776,941.68
  5. Step 5: Solve for x
    x = 90,448,776,941.68/495,636.66
  6. Step 6: Final answer
    x = 182,490.09

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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.