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Finding the Fourth Proportional to 191,722.84, 287,585 and 58,602.58

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Solution

The fourth proportional to 191,722.84, 287,585 and 58,602.58 is: 87,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,722.84 : 287,585 = 58,602.58 : x
  2. Step 2: Convert to fraction form
    191,722.84/287,585 = 58,602.58/x
  3. Step 3: Cross multiply
    191,722.84x = 287,585 × 58,602.58
  4. Step 4: Simplify right side
    191,722.84x = 16,853,222,969.30
  5. Step 5: Solve for x
    x = 16,853,222,969.30/191,722.84
  6. Step 6: Final answer
    x = 87,904.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.