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Finding the Fourth Proportional to 119,425.83, 164,811.62 and 65,714.79

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Solution

The fourth proportional to 119,425.83, 164,811.62 and 65,714.79 is: 90,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,425.83 : 164,811.62 = 65,714.79 : x
  2. Step 2: Convert to fraction form
    119,425.83/164,811.62 = 65,714.79/x
  3. Step 3: Cross multiply
    119,425.83x = 164,811.62 × 65,714.79
  4. Step 4: Simplify right side
    119,425.83x = 10,830,560,669.29
  5. Step 5: Solve for x
    x = 10,830,560,669.29/119,425.83
  6. Step 6: Final answer
    x = 90,688.59

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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.