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Finding the Fourth Proportional to 125,657.60, 173,386.56 and 83,273.60

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Solution

The fourth proportional to 125,657.60, 173,386.56 and 83,273.60 is: 114,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,657.60 : 173,386.56 = 83,273.60 : x
  2. Step 2: Convert to fraction form
    125,657.60/173,386.56 = 83,273.60/x
  3. Step 3: Cross multiply
    125,657.60x = 173,386.56 × 83,273.60
  4. Step 4: Simplify right side
    125,657.60x = 14,438,523,042.82
  5. Step 5: Solve for x
    x = 14,438,523,042.82/125,657.60
  6. Step 6: Final answer
    x = 114,903.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.