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Finding the Fourth Proportional to 99,374.52, 137,135.66 and 54,051.52

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Solution

The fourth proportional to 99,374.52, 137,135.66 and 54,051.52 is: 74,590.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,374.52 : 137,135.66 = 54,051.52 : x
  2. Step 2: Convert to fraction form
    99,374.52/137,135.66 = 54,051.52/x
  3. Step 3: Cross multiply
    99,374.52x = 137,135.66 × 54,051.52
  4. Step 4: Simplify right side
    99,374.52x = 7,412,390,869.20
  5. Step 5: Solve for x
    x = 7,412,390,869.20/99,374.52
  6. Step 6: Final answer
    x = 74,590.46

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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.