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Finding the Fourth Proportional to 226,657.76, 312,775.40 and 124,666.76

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Solution

The fourth proportional to 226,657.76, 312,775.40 and 124,666.76 is: 172,033.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,657.76 : 312,775.40 = 124,666.76 : x
  2. Step 2: Convert to fraction form
    226,657.76/312,775.40 = 124,666.76/x
  3. Step 3: Cross multiply
    226,657.76x = 312,775.40 × 124,666.76
  4. Step 4: Simplify right side
    226,657.76x = 38,992,696,819.31
  5. Step 5: Solve for x
    x = 38,992,696,819.31/226,657.76
  6. Step 6: Final answer
    x = 172,033.37

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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.