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Finding the Fourth Proportional to 118,642.60, 163,701.43 and 70,259.73

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Solution

The fourth proportional to 118,642.60, 163,701.43 and 70,259.73 is: 96,943.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,642.60 : 163,701.43 = 70,259.73 : x
  2. Step 2: Convert to fraction form
    118,642.60/163,701.43 = 70,259.73/x
  3. Step 3: Cross multiply
    118,642.60x = 163,701.43 × 70,259.73
  4. Step 4: Simplify right side
    118,642.60x = 11,501,618,140.90
  5. Step 5: Solve for x
    x = 11,501,618,140.90/118,642.60
  6. Step 6: Final answer
    x = 96,943.41

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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.