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Finding the Fourth Proportional to 235,173.70, 324,545.75 and 127,749.88

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Solution

The fourth proportional to 235,173.70, 324,545.75 and 127,749.88 is: 176,298.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,173.70 : 324,545.75 = 127,749.88 : x
  2. Step 2: Convert to fraction form
    235,173.70/324,545.75 = 127,749.88/x
  3. Step 3: Cross multiply
    235,173.70x = 324,545.75 × 127,749.88
  4. Step 4: Simplify right side
    235,173.70x = 41,460,679,978.26
  5. Step 5: Solve for x
    x = 41,460,679,978.26/235,173.70
  6. Step 6: Final answer
    x = 176,298.11

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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.