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Finding the Fourth Proportional to 294,689.68, 406,720.52 and 173,860.51

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Solution

The fourth proportional to 294,689.68, 406,720.52 and 173,860.51 is: 239,956.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,689.68 : 406,720.52 = 173,860.51 : x
  2. Step 2: Convert to fraction form
    294,689.68/406,720.52 = 173,860.51/x
  3. Step 3: Cross multiply
    294,689.68x = 406,720.52 × 173,860.51
  4. Step 4: Simplify right side
    294,689.68x = 70,712,637,034.67
  5. Step 5: Solve for x
    x = 70,712,637,034.67/294,689.68
  6. Step 6: Final answer
    x = 239,956.27

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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.