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Finding the Fourth Proportional to 218,592.36, 301,672.89 and 121,802.63

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Solution

The fourth proportional to 218,592.36, 301,672.89 and 121,802.63 is: 168,096.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,592.36 : 301,672.89 = 121,802.63 : x
  2. Step 2: Convert to fraction form
    218,592.36/301,672.89 = 121,802.63/x
  3. Step 3: Cross multiply
    218,592.36x = 301,672.89 × 121,802.63
  4. Step 4: Simplify right side
    218,592.36x = 36,744,549,893.34
  5. Step 5: Solve for x
    x = 36,744,549,893.34/218,592.36
  6. Step 6: Final answer
    x = 168,096.22

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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.