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Finding the Fourth Proportional to 371,703.47, 557,282.51 and 118,838.43

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Solution

The fourth proportional to 371,703.47, 557,282.51 and 118,838.43 is: 178,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,703.47 : 557,282.51 = 118,838.43 : x
  2. Step 2: Convert to fraction form
    371,703.47/557,282.51 = 118,838.43/x
  3. Step 3: Cross multiply
    371,703.47x = 557,282.51 × 118,838.43
  4. Step 4: Simplify right side
    371,703.47x = 66,226,578,406.31
  5. Step 5: Solve for x
    x = 66,226,578,406.31/371,703.47
  6. Step 6: Final answer
    x = 178,170.46

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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.