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Finding the Fourth Proportional to 118,750.32, 163,874.52 and 65,034.36

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Solution

The fourth proportional to 118,750.32, 163,874.52 and 65,034.36 is: 89,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,750.32 : 163,874.52 = 65,034.36 : x
  2. Step 2: Convert to fraction form
    118,750.32/163,874.52 = 65,034.36/x
  3. Step 3: Cross multiply
    118,750.32x = 163,874.52 × 65,034.36
  4. Step 4: Simplify right side
    118,750.32x = 10,657,474,528.51
  5. Step 5: Solve for x
    x = 10,657,474,528.51/118,750.32
  6. Step 6: Final answer
    x = 89,746.91

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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.