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Finding the Fourth Proportional to 476,632.84, 714,948.61 and 121,646.85

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Solution

The fourth proportional to 476,632.84, 714,948.61 and 121,646.85 is: 182,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,632.84 : 714,948.61 = 121,646.85 : x
  2. Step 2: Convert to fraction form
    476,632.84/714,948.61 = 121,646.85/x
  3. Step 3: Cross multiply
    476,632.84x = 714,948.61 × 121,646.85
  4. Step 4: Simplify right side
    476,632.84x = 86,971,246,318.38
  5. Step 5: Solve for x
    x = 86,971,246,318.38/476,632.84
  6. Step 6: Final answer
    x = 182,470.11

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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.