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Finding the Fourth Proportional to 192,404.84, 265,509.78 and 107,521.16

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Solution

The fourth proportional to 192,404.84, 265,509.78 and 107,521.16 is: 148,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,404.84 : 265,509.78 = 107,521.16 : x
  2. Step 2: Convert to fraction form
    192,404.84/265,509.78 = 107,521.16/x
  3. Step 3: Cross multiply
    192,404.84x = 265,509.78 × 107,521.16
  4. Step 4: Simplify right side
    192,404.84x = 28,547,919,536.94
  5. Step 5: Solve for x
    x = 28,547,919,536.94/192,404.84
  6. Step 6: Final answer
    x = 148,374.23

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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.