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Finding the Fourth Proportional to 351,530.60, 527,320.53 and 141,168.51

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Solution

The fourth proportional to 351,530.60, 527,320.53 and 141,168.51 is: 211,762.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,530.60 : 527,320.53 = 141,168.51 : x
  2. Step 2: Convert to fraction form
    351,530.60/527,320.53 = 141,168.51/x
  3. Step 3: Cross multiply
    351,530.60x = 527,320.53 × 141,168.51
  4. Step 4: Simplify right side
    351,530.60x = 74,441,053,512.51
  5. Step 5: Solve for x
    x = 74,441,053,512.51/351,530.60
  6. Step 6: Final answer
    x = 211,762.66

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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.