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Finding the Fourth Proportional to 342,855.40, 514,316.91 and 118,186.25

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Solution

The fourth proportional to 342,855.40, 514,316.91 and 118,186.25 is: 177,291.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,855.40 : 514,316.91 = 118,186.25 : x
  2. Step 2: Convert to fraction form
    342,855.40/514,316.91 = 118,186.25/x
  3. Step 3: Cross multiply
    342,855.40x = 514,316.91 × 118,186.25
  4. Step 4: Simplify right side
    342,855.40x = 60,785,186,904.49
  5. Step 5: Solve for x
    x = 60,785,186,904.49/342,855.40
  6. Step 6: Final answer
    x = 177,291.03

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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.