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Finding the Fourth Proportional to 172,477.20, 238,018.20 and 97,025.76

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Solution

The fourth proportional to 172,477.20, 238,018.20 and 97,025.76 is: 133,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,477.20 : 238,018.20 = 97,025.76 : x
  2. Step 2: Convert to fraction form
    172,477.20/238,018.20 = 97,025.76/x
  3. Step 3: Cross multiply
    172,477.20x = 238,018.20 × 97,025.76
  4. Step 4: Simplify right side
    172,477.20x = 23,093,896,748.83
  5. Step 5: Solve for x
    x = 23,093,896,748.83/172,477.20
  6. Step 6: Final answer
    x = 133,895.36

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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.