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Finding the Fourth Proportional to 113,310.52, 156,368.08 and 63,009.52

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Solution

The fourth proportional to 113,310.52, 156,368.08 and 63,009.52 is: 86,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,310.52 : 156,368.08 = 63,009.52 : x
  2. Step 2: Convert to fraction form
    113,310.52/156,368.08 = 63,009.52/x
  3. Step 3: Cross multiply
    113,310.52x = 156,368.08 × 63,009.52
  4. Step 4: Simplify right side
    113,310.52x = 9,852,677,664.12
  5. Step 5: Solve for x
    x = 9,852,677,664.12/113,310.52
  6. Step 6: Final answer
    x = 86,952.89

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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.