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Finding the Fourth Proportional to 176,305.69, 243,405.68 and 107,421.14

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Solution

The fourth proportional to 176,305.69, 243,405.68 and 107,421.14 is: 148,304.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,305.69 : 243,405.68 = 107,421.14 : x
  2. Step 2: Convert to fraction form
    176,305.69/243,405.68 = 107,421.14/x
  3. Step 3: Cross multiply
    176,305.69x = 243,405.68 × 107,421.14
  4. Step 4: Simplify right side
    176,305.69x = 26,146,915,236.69
  5. Step 5: Solve for x
    x = 26,146,915,236.69/176,305.69
  6. Step 6: Final answer
    x = 148,304.43

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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.