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Finding the Fourth Proportional to 155,121, 232,681.50 and 44,313

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Solution

The fourth proportional to 155,121, 232,681.50 and 44,313 is: 66,469.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,121 : 232,681.50 = 44,313 : x
  2. Step 2: Convert to fraction form
    155,121/232,681.50 = 44,313/x
  3. Step 3: Cross multiply
    155,121x = 232,681.50 × 44,313
  4. Step 4: Simplify right side
    155,121x = 10,310,815,309.50
  5. Step 5: Solve for x
    x = 10,310,815,309.50/155,121
  6. Step 6: Final answer
    x = 66,469.50

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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.