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Finding the Fourth Proportional to 316,493.46, 474,740.28 and 94,877.46

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Solution

The fourth proportional to 316,493.46, 474,740.28 and 94,877.46 is: 142,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,493.46 : 474,740.28 = 94,877.46 : x
  2. Step 2: Convert to fraction form
    316,493.46/474,740.28 = 94,877.46/x
  3. Step 3: Cross multiply
    316,493.46x = 474,740.28 × 94,877.46
  4. Step 4: Simplify right side
    316,493.46x = 45,042,151,926.09
  5. Step 5: Solve for x
    x = 45,042,151,926.09/316,493.46
  6. Step 6: Final answer
    x = 142,316.22

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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.