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Finding the Fourth Proportional to 118,124.60, 163,008.39 and 64,410.66

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Solution

The fourth proportional to 118,124.60, 163,008.39 and 64,410.66 is: 88,884.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,124.60 : 163,008.39 = 64,410.66 : x
  2. Step 2: Convert to fraction form
    118,124.60/163,008.39 = 64,410.66/x
  3. Step 3: Cross multiply
    118,124.60x = 163,008.39 × 64,410.66
  4. Step 4: Simplify right side
    118,124.60x = 10,499,477,985.44
  5. Step 5: Solve for x
    x = 10,499,477,985.44/118,124.60
  6. Step 6: Final answer
    x = 88,884.77

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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.