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Finding the Fourth Proportional to 253,330.13, 379,994.90 and 101,595.67

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Solution

The fourth proportional to 253,330.13, 379,994.90 and 101,595.67 is: 152,393.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,330.13 : 379,994.90 = 101,595.67 : x
  2. Step 2: Convert to fraction form
    253,330.13/379,994.90 = 101,595.67/x
  3. Step 3: Cross multiply
    253,330.13x = 379,994.90 × 101,595.67
  4. Step 4: Simplify right side
    253,330.13x = 38,605,835,004.12
  5. Step 5: Solve for x
    x = 38,605,835,004.12/253,330.13
  6. Step 6: Final answer
    x = 152,393.38

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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.