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Finding the Fourth Proportional to 294,688.68, 406,719.14 and 173,859.51

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Solution

The fourth proportional to 294,688.68, 406,719.14 and 173,859.51 is: 239,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,688.68 : 406,719.14 = 173,859.51 : x
  2. Step 2: Convert to fraction form
    294,688.68/406,719.14 = 173,859.51/x
  3. Step 3: Cross multiply
    294,688.68x = 406,719.14 × 173,859.51
  4. Step 4: Simplify right side
    294,688.68x = 70,711,989,518.72
  5. Step 5: Solve for x
    x = 70,711,989,518.72/294,688.68
  6. Step 6: Final answer
    x = 239,954.89

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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.