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Finding the Fourth Proportional to 125,627.60, 188,419.80 and 46,701.20

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Solution

The fourth proportional to 125,627.60, 188,419.80 and 46,701.20 is: 70,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,627.60 : 188,419.80 = 46,701.20 : x
  2. Step 2: Convert to fraction form
    125,627.60/188,419.80 = 46,701.20/x
  3. Step 3: Cross multiply
    125,627.60x = 188,419.80 × 46,701.20
  4. Step 4: Simplify right side
    125,627.60x = 8,799,430,763.76
  5. Step 5: Solve for x
    x = 8,799,430,763.76/125,627.60
  6. Step 6: Final answer
    x = 70,043.77

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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.