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Finding the Fourth Proportional to 371,590.51, 557,276.42 and 105,374.29

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Solution

The fourth proportional to 371,590.51, 557,276.42 and 105,374.29 is: 158,030.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,590.51 : 557,276.42 = 105,374.29 : x
  2. Step 2: Convert to fraction form
    371,590.51/557,276.42 = 105,374.29/x
  3. Step 3: Cross multiply
    371,590.51x = 557,276.42 × 105,374.29
  4. Step 4: Simplify right side
    371,590.51x = 58,722,607,091.24
  5. Step 5: Solve for x
    x = 58,722,607,091.24/371,590.51
  6. Step 6: Final answer
    x = 158,030.43

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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.