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Finding the Fourth Proportional to 193,130.70, 289,717.65 and 60,009.90

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Solution

The fourth proportional to 193,130.70, 289,717.65 and 60,009.90 is: 90,021.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,130.70 : 289,717.65 = 60,009.90 : x
  2. Step 2: Convert to fraction form
    193,130.70/289,717.65 = 60,009.90/x
  3. Step 3: Cross multiply
    193,130.70x = 289,717.65 × 60,009.90
  4. Step 4: Simplify right side
    193,130.70x = 17,385,927,204.74
  5. Step 5: Solve for x
    x = 17,385,927,204.74/193,130.70
  6. Step 6: Final answer
    x = 90,021.56

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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.