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Finding the Fourth Proportional to 283,681.60, 424,960.80 and 183,911.20

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Solution

The fourth proportional to 283,681.60, 424,960.80 and 183,911.20 is: 275,502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,681.60 : 424,960.80 = 183,911.20 : x
  2. Step 2: Convert to fraction form
    283,681.60/424,960.80 = 183,911.20/x
  3. Step 3: Cross multiply
    283,681.60x = 424,960.80 × 183,911.20
  4. Step 4: Simplify right side
    283,681.60x = 78,155,050,680.96
  5. Step 5: Solve for x
    x = 78,155,050,680.96/283,681.60
  6. Step 6: Final answer
    x = 275,502.71

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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.