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Finding the Fourth Proportional to 172,471.01, 238,009.93 and 97,019.51

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Solution

The fourth proportional to 172,471.01, 238,009.93 and 97,019.51 is: 133,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,471.01 : 238,009.93 = 97,019.51 : x
  2. Step 2: Convert to fraction form
    172,471.01/238,009.93 = 97,019.51/x
  3. Step 3: Cross multiply
    172,471.01x = 238,009.93 × 97,019.51
  4. Step 4: Simplify right side
    172,471.01x = 23,091,605,351.14
  5. Step 5: Solve for x
    x = 23,091,605,351.14/172,471.01
  6. Step 6: Final answer
    x = 133,886.88

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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.