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Finding the Fourth Proportional to 474,263.60, 711,152.20 and 141,796.40

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Solution

The fourth proportional to 474,263.60, 711,152.20 and 141,796.40 is: 212,621.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,263.60 : 711,152.20 = 141,796.40 : x
  2. Step 2: Convert to fraction form
    474,263.60/711,152.20 = 141,796.40/x
  3. Step 3: Cross multiply
    474,263.60x = 711,152.20 × 141,796.40
  4. Step 4: Simplify right side
    474,263.60x = 100,838,821,812.08
  5. Step 5: Solve for x
    x = 100,838,821,812.08/474,263.60
  6. Step 6: Final answer
    x = 212,621.89

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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.