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Finding the Fourth Proportional to 282,701.80, 424,052.70 and 142,733.80

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Solution

The fourth proportional to 282,701.80, 424,052.70 and 142,733.80 is: 214,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,701.80 : 424,052.70 = 142,733.80 : x
  2. Step 2: Convert to fraction form
    282,701.80/424,052.70 = 142,733.80/x
  3. Step 3: Cross multiply
    282,701.80x = 424,052.70 × 142,733.80
  4. Step 4: Simplify right side
    282,701.80x = 60,526,653,271.26
  5. Step 5: Solve for x
    x = 60,526,653,271.26/282,701.80
  6. Step 6: Final answer
    x = 214,100.70

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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.