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Finding the Fourth Proportional to 127,903.44, 176,507.52 and 71,318.40

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Solution

The fourth proportional to 127,903.44, 176,507.52 and 71,318.40 is: 98,419.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,903.44 : 176,507.52 = 71,318.40 : x
  2. Step 2: Convert to fraction form
    127,903.44/176,507.52 = 71,318.40/x
  3. Step 3: Cross multiply
    127,903.44x = 176,507.52 × 71,318.40
  4. Step 4: Simplify right side
    127,903.44x = 12,588,233,914.37
  5. Step 5: Solve for x
    x = 12,588,233,914.37/127,903.44
  6. Step 6: Final answer
    x = 98,419.82

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1.5x scale

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.