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Finding the Fourth Proportional to 316,685.96, 475,223.92 and 124,526.58

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Solution

The fourth proportional to 316,685.96, 475,223.92 and 124,526.58 is: 186,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,685.96 : 475,223.92 = 124,526.58 : x
  2. Step 2: Convert to fraction form
    316,685.96/475,223.92 = 124,526.58/x
  3. Step 3: Cross multiply
    316,685.96x = 475,223.92 × 124,526.58
  4. Step 4: Simplify right side
    316,685.96x = 59,178,007,398.39
  5. Step 5: Solve for x
    x = 59,178,007,398.39/316,685.96
  6. Step 6: Final answer
    x = 186,866.53

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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.