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Finding the Fourth Proportional to 474,056.28, 711,105.18 and 137,130.98

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Solution

The fourth proportional to 474,056.28, 711,105.18 and 137,130.98 is: 205,702.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,056.28 : 711,105.18 = 137,130.98 : x
  2. Step 2: Convert to fraction form
    474,056.28/711,105.18 = 137,130.98/x
  3. Step 3: Cross multiply
    474,056.28x = 711,105.18 × 137,130.98
  4. Step 4: Simplify right side
    474,056.28x = 97,514,552,146.66
  5. Step 5: Solve for x
    x = 97,514,552,146.66/474,056.28
  6. Step 6: Final answer
    x = 205,702.48

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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.