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Finding the Fourth Proportional to 125,746.79, 188,643.47 and 41,512.82

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Solution

The fourth proportional to 125,746.79, 188,643.47 and 41,512.82 is: 62,276.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,746.79 : 188,643.47 = 41,512.82 : x
  2. Step 2: Convert to fraction form
    125,746.79/188,643.47 = 41,512.82/x
  3. Step 3: Cross multiply
    125,746.79x = 188,643.47 × 41,512.82
  4. Step 4: Simplify right side
    125,746.79x = 7,831,121,263.50
  5. Step 5: Solve for x
    x = 7,831,121,263.50/125,746.79
  6. Step 6: Final answer
    x = 62,276.91

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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.