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Finding the Fourth Proportional to 98,334.51, 147,479.81 and 38,364.59

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Solution

The fourth proportional to 98,334.51, 147,479.81 and 38,364.59 is: 57,538.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,334.51 : 147,479.81 = 38,364.59 : x
  2. Step 2: Convert to fraction form
    98,334.51/147,479.81 = 38,364.59/x
  3. Step 3: Cross multiply
    98,334.51x = 147,479.81 × 38,364.59
  4. Step 4: Simplify right side
    98,334.51x = 5,658,002,114.93
  5. Step 5: Solve for x
    x = 5,658,002,114.93/98,334.51
  6. Step 6: Final answer
    x = 57,538.31

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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.