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Finding the Fourth Proportional to 108,574.84, 162,836.52 and 61,210.90

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Solution

The fourth proportional to 108,574.84, 162,836.52 and 61,210.90 is: 91,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,574.84 : 162,836.52 = 61,210.90 : x
  2. Step 2: Convert to fraction form
    108,574.84/162,836.52 = 61,210.90/x
  3. Step 3: Cross multiply
    108,574.84x = 162,836.52 × 61,210.90
  4. Step 4: Simplify right side
    108,574.84x = 9,967,369,942.07
  5. Step 5: Solve for x
    x = 9,967,369,942.07/108,574.84
  6. Step 6: Final answer
    x = 91,801.84

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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.