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Finding the Fourth Proportional to 113,801.80, 170,702.70 and 102,526.60

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Solution

The fourth proportional to 113,801.80, 170,702.70 and 102,526.60 is: 153,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,801.80 : 170,702.70 = 102,526.60 : x
  2. Step 2: Convert to fraction form
    113,801.80/170,702.70 = 102,526.60/x
  3. Step 3: Cross multiply
    113,801.80x = 170,702.70 × 102,526.60
  4. Step 4: Simplify right side
    113,801.80x = 17,501,567,441.82
  5. Step 5: Solve for x
    x = 17,501,567,441.82/113,801.80
  6. Step 6: Final answer
    x = 153,789.90

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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.