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Finding the Fourth Proportional to 218,603.80, 301,710.18 and 133,748.20

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Solution

The fourth proportional to 218,603.80, 301,710.18 and 133,748.20 is: 184,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,603.80 : 301,710.18 = 133,748.20 : x
  2. Step 2: Convert to fraction form
    218,603.80/301,710.18 = 133,748.20/x
  3. Step 3: Cross multiply
    218,603.80x = 301,710.18 × 133,748.20
  4. Step 4: Simplify right side
    218,603.80x = 40,353,193,496.68
  5. Step 5: Solve for x
    x = 40,353,193,496.68/218,603.80
  6. Step 6: Final answer
    x = 184,595.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.