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Finding the Fourth Proportional to 118,500.99, 163,433.93 and 84,498.60

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Solution

The fourth proportional to 118,500.99, 163,433.93 and 84,498.60 is: 116,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,500.99 : 163,433.93 = 84,498.60 : x
  2. Step 2: Convert to fraction form
    118,500.99/163,433.93 = 84,498.60/x
  3. Step 3: Cross multiply
    118,500.99x = 163,433.93 × 84,498.60
  4. Step 4: Simplify right side
    118,500.99x = 13,809,937,855.01
  5. Step 5: Solve for x
    x = 13,809,937,855.01/118,500.99
  6. Step 6: Final answer
    x = 116,538.59

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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.