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Finding the Fourth Proportional to 65,373.45, 90,107.55 and 46,228.53

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Solution

The fourth proportional to 65,373.45, 90,107.55 and 46,228.53 is: 63,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,373.45 : 90,107.55 = 46,228.53 : x
  2. Step 2: Convert to fraction form
    65,373.45/90,107.55 = 46,228.53/x
  3. Step 3: Cross multiply
    65,373.45x = 90,107.55 × 46,228.53
  4. Step 4: Simplify right side
    65,373.45x = 4,165,539,578.40
  5. Step 5: Solve for x
    x = 4,165,539,578.40/65,373.45
  6. Step 6: Final answer
    x = 63,719.13

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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.