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Finding the Fourth Proportional to 151,956.48, 209,653.92 and 88,281.84

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Solution

The fourth proportional to 151,956.48, 209,653.92 and 88,281.84 is: 121,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,956.48 : 209,653.92 = 88,281.84 : x
  2. Step 2: Convert to fraction form
    151,956.48/209,653.92 = 88,281.84/x
  3. Step 3: Cross multiply
    151,956.48x = 209,653.92 × 88,281.84
  4. Step 4: Simplify right side
    151,956.48x = 18,508,633,820.81
  5. Step 5: Solve for x
    x = 18,508,633,820.81/151,956.48
  6. Step 6: Final answer
    x = 121,802.20

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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.