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Finding the Fourth Proportional to 474,145.75, 711,070.98 and 158,528.85

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Solution

The fourth proportional to 474,145.75, 711,070.98 and 158,528.85 is: 237,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,145.75 : 711,070.98 = 158,528.85 : x
  2. Step 2: Convert to fraction form
    474,145.75/711,070.98 = 158,528.85/x
  3. Step 3: Cross multiply
    474,145.75x = 711,070.98 × 158,528.85
  4. Step 4: Simplify right side
    474,145.75x = 112,725,264,727.77
  5. Step 5: Solve for x
    x = 112,725,264,727.77/474,145.75
  6. Step 6: Final answer
    x = 237,743.91

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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.