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Finding the Fourth Proportional to 292,081.84, 438,122.76 and 114,672.40

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Solution

The fourth proportional to 292,081.84, 438,122.76 and 114,672.40 is: 172,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,081.84 : 438,122.76 = 114,672.40 : x
  2. Step 2: Convert to fraction form
    292,081.84/438,122.76 = 114,672.40/x
  3. Step 3: Cross multiply
    292,081.84x = 438,122.76 × 114,672.40
  4. Step 4: Simplify right side
    292,081.84x = 50,240,588,383.82
  5. Step 5: Solve for x
    x = 50,240,588,383.82/292,081.84
  6. Step 6: Final answer
    x = 172,008.60

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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.