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Finding the Fourth Proportional to 207,043.34, 285,730.08 and 126,457.82

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Solution

The fourth proportional to 207,043.34, 285,730.08 and 126,457.82 is: 174,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,043.34 : 285,730.08 = 126,457.82 : x
  2. Step 2: Convert to fraction form
    207,043.34/285,730.08 = 126,457.82/x
  3. Step 3: Cross multiply
    207,043.34x = 285,730.08 × 126,457.82
  4. Step 4: Simplify right side
    207,043.34x = 36,132,803,025.23
  5. Step 5: Solve for x
    x = 36,132,803,025.23/207,043.34
  6. Step 6: Final answer
    x = 174,518.06

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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.