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Finding the Fourth Proportional to 316,573, 474,859.50 and 94,957

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Solution

The fourth proportional to 316,573, 474,859.50 and 94,957 is: 142,435.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,573 : 474,859.50 = 94,957 : x
  2. Step 2: Convert to fraction form
    316,573/474,859.50 = 94,957/x
  3. Step 3: Cross multiply
    316,573x = 474,859.50 × 94,957
  4. Step 4: Simplify right side
    316,573x = 45,091,233,541.50
  5. Step 5: Solve for x
    x = 45,091,233,541.50/316,573
  6. Step 6: Final answer
    x = 142,435.50

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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.