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Finding the Fourth Proportional to 125,504.16, 188,281.84 and 42,396.32

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Solution

The fourth proportional to 125,504.16, 188,281.84 and 42,396.32 is: 63,603.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,504.16 : 188,281.84 = 42,396.32 : x
  2. Step 2: Convert to fraction form
    125,504.16/188,281.84 = 42,396.32/x
  3. Step 3: Cross multiply
    125,504.16x = 188,281.84 × 42,396.32
  4. Step 4: Simplify right side
    125,504.16x = 7,982,457,138.83
  5. Step 5: Solve for x
    x = 7,982,457,138.83/125,504.16
  6. Step 6: Final answer
    x = 63,603.13

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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.