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Finding the Fourth Proportional to 125,651.64, 188,487.72 and 46,746.84

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Solution

The fourth proportional to 125,651.64, 188,487.72 and 46,746.84 is: 70,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,651.64 : 188,487.72 = 46,746.84 : x
  2. Step 2: Convert to fraction form
    125,651.64/188,487.72 = 46,746.84/x
  3. Step 3: Cross multiply
    125,651.64x = 188,487.72 × 46,746.84
  4. Step 4: Simplify right side
    125,651.64x = 8,811,205,288.80
  5. Step 5: Solve for x
    x = 8,811,205,288.80/125,651.64
  6. Step 6: Final answer
    x = 70,124.08

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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.