Home / 352,271.61-528,439.56-99,555.75

Finding the Fourth Proportional to 352,271.61, 528,439.56 and 99,555.75

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Solution

The fourth proportional to 352,271.61, 528,439.56 and 99,555.75 is: 149,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,271.61 : 528,439.56 = 99,555.75 : x
  2. Step 2: Convert to fraction form
    352,271.61/528,439.56 = 99,555.75/x
  3. Step 3: Cross multiply
    352,271.61x = 528,439.56 × 99,555.75
  4. Step 4: Simplify right side
    352,271.61x = 52,609,196,725.47
  5. Step 5: Solve for x
    x = 52,609,196,725.47/352,271.61
  6. Step 6: Final answer
    x = 149,342.71

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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.