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Finding the Fourth Proportional to 316,436.25, 474,732.15 and 94,820.25

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Solution

The fourth proportional to 316,436.25, 474,732.15 and 94,820.25 is: 142,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,436.25 : 474,732.15 = 94,820.25 : x
  2. Step 2: Convert to fraction form
    316,436.25/474,732.15 = 94,820.25/x
  3. Step 3: Cross multiply
    316,436.25x = 474,732.15 × 94,820.25
  4. Step 4: Simplify right side
    316,436.25x = 45,014,221,146.04
  5. Step 5: Solve for x
    x = 45,014,221,146.04/316,436.25
  6. Step 6: Final answer
    x = 142,253.68

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1.5x scale

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.