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Finding the Fourth Proportional to 83,603.60, 115,369.44 and 45,875.42

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Solution

The fourth proportional to 83,603.60, 115,369.44 and 45,875.42 is: 63,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,603.60 : 115,369.44 = 45,875.42 : x
  2. Step 2: Convert to fraction form
    83,603.60/115,369.44 = 45,875.42/x
  3. Step 3: Cross multiply
    83,603.60x = 115,369.44 × 45,875.42
  4. Step 4: Simplify right side
    83,603.60x = 5,292,621,515.16
  5. Step 5: Solve for x
    x = 5,292,621,515.16/83,603.60
  6. Step 6: Final answer
    x = 63,306.14

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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.