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Finding the Fourth Proportional to 118,129.08, 163,012.22 and 67,135.08

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Solution

The fourth proportional to 118,129.08, 163,012.22 and 67,135.08 is: 92,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,129.08 : 163,012.22 = 67,135.08 : x
  2. Step 2: Convert to fraction form
    118,129.08/163,012.22 = 67,135.08/x
  3. Step 3: Cross multiply
    118,129.08x = 163,012.22 × 67,135.08
  4. Step 4: Simplify right side
    118,129.08x = 10,943,838,430.68
  5. Step 5: Solve for x
    x = 10,943,838,430.68/118,129.08
  6. Step 6: Final answer
    x = 92,643.05

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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.