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Finding the Fourth Proportional to 188,036.76, 259,266.78 and 172,173.72

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Solution

The fourth proportional to 188,036.76, 259,266.78 and 172,173.72 is: 237,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,036.76 : 259,266.78 = 172,173.72 : x
  2. Step 2: Convert to fraction form
    188,036.76/259,266.78 = 172,173.72/x
  3. Step 3: Cross multiply
    188,036.76x = 259,266.78 × 172,173.72
  4. Step 4: Simplify right side
    188,036.76x = 44,638,925,985.02
  5. Step 5: Solve for x
    x = 44,638,925,985.02/188,036.76
  6. Step 6: Final answer
    x = 237,394.68

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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.