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Finding the Fourth Proportional to 119,090.89, 178,402.77 and 69,065.89

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Solution

The fourth proportional to 119,090.89, 178,402.77 and 69,065.89 is: 103,463.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,090.89 : 178,402.77 = 69,065.89 : x
  2. Step 2: Convert to fraction form
    119,090.89/178,402.77 = 69,065.89/x
  3. Step 3: Cross multiply
    119,090.89x = 178,402.77 × 69,065.89
  4. Step 4: Simplify right side
    119,090.89x = 12,321,545,196.50
  5. Step 5: Solve for x
    x = 12,321,545,196.50/119,090.89
  6. Step 6: Final answer
    x = 103,463.38

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1.5x scale

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.