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Finding the Fourth Proportional to 118,612.53, 163,687.32 and 64,902.24

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Solution

The fourth proportional to 118,612.53, 163,687.32 and 64,902.24 is: 89,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,612.53 : 163,687.32 = 64,902.24 : x
  2. Step 2: Convert to fraction form
    118,612.53/163,687.32 = 64,902.24/x
  3. Step 3: Cross multiply
    118,612.53x = 163,687.32 × 64,902.24
  4. Step 4: Simplify right side
    118,612.53x = 10,623,673,727.60
  5. Step 5: Solve for x
    x = 10,623,673,727.60/118,612.53
  6. Step 6: Final answer
    x = 89,566.20

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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.