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Finding the Fourth Proportional to 127,403.66, 191,133.25 and 38,664.11

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Solution

The fourth proportional to 127,403.66, 191,133.25 and 38,664.11 is: 58,004.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,403.66 : 191,133.25 = 38,664.11 : x
  2. Step 2: Convert to fraction form
    127,403.66/191,133.25 = 38,664.11/x
  3. Step 3: Cross multiply
    127,403.66x = 191,133.25 × 38,664.11
  4. Step 4: Simplify right side
    127,403.66x = 7,389,996,095.32
  5. Step 5: Solve for x
    x = 7,389,996,095.32/127,403.66
  6. Step 6: Final answer
    x = 58,004.58

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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.