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Finding the Fourth Proportional to 171,390.40, 236,445.40 and 103,368.66

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Solution

The fourth proportional to 171,390.40, 236,445.40 and 103,368.66 is: 142,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,390.40 : 236,445.40 = 103,368.66 : x
  2. Step 2: Convert to fraction form
    171,390.40/236,445.40 = 103,368.66/x
  3. Step 3: Cross multiply
    171,390.40x = 236,445.40 × 103,368.66
  4. Step 4: Simplify right side
    171,390.40x = 24,441,044,161.16
  5. Step 5: Solve for x
    x = 24,441,044,161.16/171,390.40
  6. Step 6: Final answer
    x = 142,604.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.