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Finding the Fourth Proportional to 235,663.83, 325,223.30 and 128,227.46

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Solution

The fourth proportional to 235,663.83, 325,223.30 and 128,227.46 is: 176,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,663.83 : 325,223.30 = 128,227.46 : x
  2. Step 2: Convert to fraction form
    235,663.83/325,223.30 = 128,227.46/x
  3. Step 3: Cross multiply
    235,663.83x = 325,223.30 × 128,227.46
  4. Step 4: Simplify right side
    235,663.83x = 41,702,556,386.27
  5. Step 5: Solve for x
    x = 41,702,556,386.27/235,663.83
  6. Step 6: Final answer
    x = 176,957.81

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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.