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Finding the Fourth Proportional to 218,932.34, 302,126.55 and 118,330.34

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Solution

The fourth proportional to 218,932.34, 302,126.55 and 118,330.34 is: 163,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,932.34 : 302,126.55 = 118,330.34 : x
  2. Step 2: Convert to fraction form
    218,932.34/302,126.55 = 118,330.34/x
  3. Step 3: Cross multiply
    218,932.34x = 302,126.55 × 118,330.34
  4. Step 4: Simplify right side
    218,932.34x = 35,750,737,384.53
  5. Step 5: Solve for x
    x = 35,750,737,384.53/218,932.34
  6. Step 6: Final answer
    x = 163,295.83

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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.