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Finding the Fourth Proportional to 115,602.96, 173,238 and 68,106

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Solution

The fourth proportional to 115,602.96, 173,238 and 68,106 is: 102,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,602.96 : 173,238 = 68,106 : x
  2. Step 2: Convert to fraction form
    115,602.96/173,238 = 68,106/x
  3. Step 3: Cross multiply
    115,602.96x = 173,238 × 68,106
  4. Step 4: Simplify right side
    115,602.96x = 11,798,547,228
  5. Step 5: Solve for x
    x = 11,798,547,228/115,602.96
  6. Step 6: Final answer
    x = 102,060.94

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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.