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Finding the Fourth Proportional to 218,754.75, 301,881.76 and 118,152.75

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Solution

The fourth proportional to 218,754.75, 301,881.76 and 118,152.75 is: 163,050.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,754.75 : 301,881.76 = 118,152.75 : x
  2. Step 2: Convert to fraction form
    218,754.75/301,881.76 = 118,152.75/x
  3. Step 3: Cross multiply
    218,754.75x = 301,881.76 × 118,152.75
  4. Step 4: Simplify right side
    218,754.75x = 35,668,159,823.46
  5. Step 5: Solve for x
    x = 35,668,159,823.46/218,754.75
  6. Step 6: Final answer
    x = 163,050.90

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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.