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Finding the Fourth Proportional to 191,582.64, 264,383.94 and 111,056.88

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Solution

The fourth proportional to 191,582.64, 264,383.94 and 111,056.88 is: 153,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,582.64 : 264,383.94 = 111,056.88 : x
  2. Step 2: Convert to fraction form
    191,582.64/264,383.94 = 111,056.88/x
  3. Step 3: Cross multiply
    191,582.64x = 264,383.94 × 111,056.88
  4. Step 4: Simplify right side
    191,582.64x = 29,361,655,498.51
  5. Step 5: Solve for x
    x = 29,361,655,498.51/191,582.64
  6. Step 6: Final answer
    x = 153,258.43

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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.