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Finding the Fourth Proportional to 173,878.20, 261,134.10 and 103,894.20

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Solution

The fourth proportional to 173,878.20, 261,134.10 and 103,894.20 is: 156,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,878.20 : 261,134.10 = 103,894.20 : x
  2. Step 2: Convert to fraction form
    173,878.20/261,134.10 = 103,894.20/x
  3. Step 3: Cross multiply
    173,878.20x = 261,134.10 × 103,894.20
  4. Step 4: Simplify right side
    173,878.20x = 27,130,318,412.22
  5. Step 5: Solve for x
    x = 27,130,318,412.22/173,878.20
  6. Step 6: Final answer
    x = 156,030.59

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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.