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Finding the Fourth Proportional to 229,602.34, 316,855.02 and 126,240.90

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Solution

The fourth proportional to 229,602.34, 316,855.02 and 126,240.90 is: 174,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,602.34 : 316,855.02 = 126,240.90 : x
  2. Step 2: Convert to fraction form
    229,602.34/316,855.02 = 126,240.90/x
  3. Step 3: Cross multiply
    229,602.34x = 316,855.02 × 126,240.90
  4. Step 4: Simplify right side
    229,602.34x = 40,000,062,894.32
  5. Step 5: Solve for x
    x = 40,000,062,894.32/229,602.34
  6. Step 6: Final answer
    x = 174,214.53

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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.