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Finding the Fourth Proportional to 213,207.57, 319,755.60 and 63,407.52

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Solution

The fourth proportional to 213,207.57, 319,755.60 and 63,407.52 is: 95,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,207.57 : 319,755.60 = 63,407.52 : x
  2. Step 2: Convert to fraction form
    213,207.57/319,755.60 = 63,407.52/x
  3. Step 3: Cross multiply
    213,207.57x = 319,755.60 × 63,407.52
  4. Step 4: Simplify right side
    213,207.57x = 20,274,909,602.11
  5. Step 5: Solve for x
    x = 20,274,909,602.11/213,207.57
  6. Step 6: Final answer
    x = 95,094.70

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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.