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Finding the Fourth Proportional to 316,019, 474,028.50 and 94,403

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Solution

The fourth proportional to 316,019, 474,028.50 and 94,403 is: 141,604.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,019 : 474,028.50 = 94,403 : x
  2. Step 2: Convert to fraction form
    316,019/474,028.50 = 94,403/x
  3. Step 3: Cross multiply
    316,019x = 474,028.50 × 94,403
  4. Step 4: Simplify right side
    316,019x = 44,749,712,485.50
  5. Step 5: Solve for x
    x = 44,749,712,485.50/316,019
  6. Step 6: Final answer
    x = 141,604.50

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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.