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Finding the Fourth Proportional to 173,272.76, 239,130.30 and 137,755.88

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Solution

The fourth proportional to 173,272.76, 239,130.30 and 137,755.88 is: 190,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,272.76 : 239,130.30 = 137,755.88 : x
  2. Step 2: Convert to fraction form
    173,272.76/239,130.30 = 137,755.88/x
  3. Step 3: Cross multiply
    173,272.76x = 239,130.30 × 137,755.88
  4. Step 4: Simplify right side
    173,272.76x = 32,941,604,911.16
  5. Step 5: Solve for x
    x = 32,941,604,911.16/173,272.76
  6. Step 6: Final answer
    x = 190,114.16

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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.