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Finding the Fourth Proportional to 155,756.88, 233,631.95 and 43,434.10

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Solution

The fourth proportional to 155,756.88, 233,631.95 and 43,434.10 is: 65,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,756.88 : 233,631.95 = 43,434.10 : x
  2. Step 2: Convert to fraction form
    155,756.88/233,631.95 = 43,434.10/x
  3. Step 3: Cross multiply
    155,756.88x = 233,631.95 × 43,434.10
  4. Step 4: Simplify right side
    155,756.88x = 10,147,593,479.50
  5. Step 5: Solve for x
    x = 10,147,593,479.50/155,756.88
  6. Step 6: Final answer
    x = 65,150.21

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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.