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Finding the Fourth Proportional to 127,268.70, 190,903.05 and 97,835.10

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Solution

The fourth proportional to 127,268.70, 190,903.05 and 97,835.10 is: 146,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,268.70 : 190,903.05 = 97,835.10 : x
  2. Step 2: Convert to fraction form
    127,268.70/190,903.05 = 97,835.10/x
  3. Step 3: Cross multiply
    127,268.70x = 190,903.05 × 97,835.10
  4. Step 4: Simplify right side
    127,268.70x = 18,677,018,987.06
  5. Step 5: Solve for x
    x = 18,677,018,987.06/127,268.70
  6. Step 6: Final answer
    x = 146,752.65

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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.