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Finding the Fourth Proportional to 284,385.70, 426,656.50 and 124,432.64

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Solution

The fourth proportional to 284,385.70, 426,656.50 and 124,432.64 is: 186,683.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,385.70 : 426,656.50 = 124,432.64 : x
  2. Step 2: Convert to fraction form
    284,385.70/426,656.50 = 124,432.64/x
  3. Step 3: Cross multiply
    284,385.70x = 426,656.50 × 124,432.64
  4. Step 4: Simplify right side
    284,385.70x = 53,089,994,668.16
  5. Step 5: Solve for x
    x = 53,089,994,668.16/284,385.70
  6. Step 6: Final answer
    x = 186,683.07

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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.