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Finding the Fourth Proportional to 158,429.40, 237,644.28 and 47,621.40

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Solution

The fourth proportional to 158,429.40, 237,644.28 and 47,621.40 is: 71,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,429.40 : 237,644.28 = 47,621.40 : x
  2. Step 2: Convert to fraction form
    158,429.40/237,644.28 = 47,621.40/x
  3. Step 3: Cross multiply
    158,429.40x = 237,644.28 × 47,621.40
  4. Step 4: Simplify right side
    158,429.40x = 11,316,953,315.59
  5. Step 5: Solve for x
    x = 11,316,953,315.59/158,429.40
  6. Step 6: Final answer
    x = 71,432.15

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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.