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Finding the Fourth Proportional to 282,747.60, 424,121.40 and 156,776.40

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Solution

The fourth proportional to 282,747.60, 424,121.40 and 156,776.40 is: 235,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,747.60 : 424,121.40 = 156,776.40 : x
  2. Step 2: Convert to fraction form
    282,747.60/424,121.40 = 156,776.40/x
  3. Step 3: Cross multiply
    282,747.60x = 424,121.40 × 156,776.40
  4. Step 4: Simplify right side
    282,747.60x = 66,492,226,254.96
  5. Step 5: Solve for x
    x = 66,492,226,254.96/282,747.60
  6. Step 6: Final answer
    x = 235,164.60

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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.