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Finding the Fourth Proportional to 125,857.92, 188,903.68 and 63,572.16

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Solution

The fourth proportional to 125,857.92, 188,903.68 and 63,572.16 is: 95,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,857.92 : 188,903.68 = 63,572.16 : x
  2. Step 2: Convert to fraction form
    125,857.92/188,903.68 = 63,572.16/x
  3. Step 3: Cross multiply
    125,857.92x = 188,903.68 × 63,572.16
  4. Step 4: Simplify right side
    125,857.92x = 12,009,014,969.55
  5. Step 5: Solve for x
    x = 12,009,014,969.55/125,857.92
  6. Step 6: Final answer
    x = 95,417.24

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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.