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Finding the Fourth Proportional to 149,495.01, 223,988.76 and 90,206.10

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Solution

The fourth proportional to 149,495.01, 223,988.76 and 90,206.10 is: 135,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,495.01 : 223,988.76 = 90,206.10 : x
  2. Step 2: Convert to fraction form
    149,495.01/223,988.76 = 90,206.10/x
  3. Step 3: Cross multiply
    149,495.01x = 223,988.76 × 90,206.10
  4. Step 4: Simplify right side
    149,495.01x = 20,205,152,483.44
  5. Step 5: Solve for x
    x = 20,205,152,483.44/149,495.01
  6. Step 6: Final answer
    x = 135,156.03

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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.