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Finding the Fourth Proportional to 176,609.69, 243,713.94 and 100,133.93

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Solution

The fourth proportional to 176,609.69, 243,713.94 and 100,133.93 is: 138,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,609.69 : 243,713.94 = 100,133.93 : x
  2. Step 2: Convert to fraction form
    176,609.69/243,713.94 = 100,133.93/x
  3. Step 3: Cross multiply
    176,609.69x = 243,713.94 × 100,133.93
  4. Step 4: Simplify right side
    176,609.69x = 24,404,033,389.41
  5. Step 5: Solve for x
    x = 24,404,033,389.41/176,609.69
  6. Step 6: Final answer
    x = 138,180.61

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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.