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Finding the Fourth Proportional to 118,772.22, 163,905.74 and 65,058.13

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Solution

The fourth proportional to 118,772.22, 163,905.74 and 65,058.13 is: 89,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,772.22 : 163,905.74 = 65,058.13 : x
  2. Step 2: Convert to fraction form
    118,772.22/163,905.74 = 65,058.13/x
  3. Step 3: Cross multiply
    118,772.22x = 163,905.74 × 65,058.13
  4. Step 4: Simplify right side
    118,772.22x = 10,663,400,940.67
  5. Step 5: Solve for x
    x = 10,663,400,940.67/118,772.22
  6. Step 6: Final answer
    x = 89,780.26

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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.