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Finding the Fourth Proportional to 357,272.66, 535,208.31 and 207,197.66

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Solution

The fourth proportional to 357,272.66, 535,208.31 and 207,197.66 is: 310,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,272.66 : 535,208.31 = 207,197.66 : x
  2. Step 2: Convert to fraction form
    357,272.66/535,208.31 = 207,197.66/x
  3. Step 3: Cross multiply
    357,272.66x = 535,208.31 × 207,197.66
  4. Step 4: Simplify right side
    357,272.66x = 110,893,906,768.51
  5. Step 5: Solve for x
    x = 110,893,906,768.51/357,272.66
  6. Step 6: Final answer
    x = 310,390.13

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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.