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Finding the Fourth Proportional to 464,486.91, 696,731.46 and 127,532.18

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Solution

The fourth proportional to 464,486.91, 696,731.46 and 127,532.18 is: 191,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,486.91 : 696,731.46 = 127,532.18 : x
  2. Step 2: Convert to fraction form
    464,486.91/696,731.46 = 127,532.18/x
  3. Step 3: Cross multiply
    464,486.91x = 696,731.46 × 127,532.18
  4. Step 4: Simplify right side
    464,486.91x = 88,855,681,968.38
  5. Step 5: Solve for x
    x = 88,855,681,968.38/464,486.91
  6. Step 6: Final answer
    x = 191,298.57

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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.