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Finding the Fourth Proportional to 127,109.40, 190,664.10 and 93,648.30

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Solution

The fourth proportional to 127,109.40, 190,664.10 and 93,648.30 is: 140,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,109.40 : 190,664.10 = 93,648.30 : x
  2. Step 2: Convert to fraction form
    127,109.40/190,664.10 = 93,648.30/x
  3. Step 3: Cross multiply
    127,109.40x = 190,664.10 × 93,648.30
  4. Step 4: Simplify right side
    127,109.40x = 17,855,368,836.03
  5. Step 5: Solve for x
    x = 17,855,368,836.03/127,109.40
  6. Step 6: Final answer
    x = 140,472.45

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1.5x scale

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.