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Finding the Fourth Proportional to 62,286.40, 93,210.90 and 42,603.40

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Solution

The fourth proportional to 62,286.40, 93,210.90 and 42,603.40 is: 63,755.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,286.40 : 93,210.90 = 42,603.40 : x
  2. Step 2: Convert to fraction form
    62,286.40/93,210.90 = 42,603.40/x
  3. Step 3: Cross multiply
    62,286.40x = 93,210.90 × 42,603.40
  4. Step 4: Simplify right side
    62,286.40x = 3,971,101,257.06
  5. Step 5: Solve for x
    x = 3,971,101,257.06/62,286.40
  6. Step 6: Final answer
    x = 63,755.51

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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.