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Finding the Fourth Proportional to 304,837.16, 457,130.59 and 91,530.54

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Solution

The fourth proportional to 304,837.16, 457,130.59 and 91,530.54 is: 137,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,837.16 : 457,130.59 = 91,530.54 : x
  2. Step 2: Convert to fraction form
    304,837.16/457,130.59 = 91,530.54/x
  3. Step 3: Cross multiply
    304,837.16x = 457,130.59 × 91,530.54
  4. Step 4: Simplify right side
    304,837.16x = 41,841,409,524.39
  5. Step 5: Solve for x
    x = 41,841,409,524.39/304,837.16
  6. Step 6: Final answer
    x = 137,258.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.