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Finding the Fourth Proportional to 113,118.69, 169,678.53 and 38,239.23

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Solution

The fourth proportional to 113,118.69, 169,678.53 and 38,239.23 is: 57,359.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,118.69 : 169,678.53 = 38,239.23 : x
  2. Step 2: Convert to fraction form
    113,118.69/169,678.53 = 38,239.23/x
  3. Step 3: Cross multiply
    113,118.69x = 169,678.53 × 38,239.23
  4. Step 4: Simplify right side
    113,118.69x = 6,488,375,486.34
  5. Step 5: Solve for x
    x = 6,488,375,486.34/113,118.69
  6. Step 6: Final answer
    x = 57,359.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.