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Finding the Fourth Proportional to 118,603.26, 163,669.14 and 64,887.12

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Solution

The fourth proportional to 118,603.26, 163,669.14 and 64,887.12 is: 89,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,603.26 : 163,669.14 = 64,887.12 : x
  2. Step 2: Convert to fraction form
    118,603.26/163,669.14 = 64,887.12/x
  3. Step 3: Cross multiply
    118,603.26x = 163,669.14 × 64,887.12
  4. Step 4: Simplify right side
    118,603.26x = 10,620,019,127.48
  5. Step 5: Solve for x
    x = 10,620,019,127.48/118,603.26
  6. Step 6: Final answer
    x = 89,542.39

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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.