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Finding the Fourth Proportional to 358,532.40, 537,549.30 and 158,743.70

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Solution

The fourth proportional to 358,532.40, 537,549.30 and 158,743.70 is: 238,005.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,532.40 : 537,549.30 = 158,743.70 : x
  2. Step 2: Convert to fraction form
    358,532.40/537,549.30 = 158,743.70/x
  3. Step 3: Cross multiply
    358,532.40x = 537,549.30 × 158,743.70
  4. Step 4: Simplify right side
    358,532.40x = 85,332,562,126.66
  5. Step 5: Solve for x
    x = 85,332,562,126.66/358,532.40
  6. Step 6: Final answer
    x = 238,005.16

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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.