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Finding the Fourth Proportional to 493,551.00, 740,368.45 and 138,564.98

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Solution

The fourth proportional to 493,551.00, 740,368.45 and 138,564.98 is: 207,859.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,551.00 : 740,368.45 = 138,564.98 : x
  2. Step 2: Convert to fraction form
    493,551.00/740,368.45 = 138,564.98/x
  3. Step 3: Cross multiply
    493,551.00x = 740,368.45 × 138,564.98
  4. Step 4: Simplify right side
    493,551.00x = 102,589,138,714.63
  5. Step 5: Solve for x
    x = 102,589,138,714.63/493,551.00
  6. Step 6: Final answer
    x = 207,859.25

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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.