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Finding the Fourth Proportional to 118,550.40, 163,592.64 and 68,248.32

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Solution

The fourth proportional to 118,550.40, 163,592.64 and 68,248.32 is: 94,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,550.40 : 163,592.64 = 68,248.32 : x
  2. Step 2: Convert to fraction form
    118,550.40/163,592.64 = 68,248.32/x
  3. Step 3: Cross multiply
    118,550.40x = 163,592.64 × 68,248.32
  4. Step 4: Simplify right side
    118,550.40x = 11,164,922,844.36
  5. Step 5: Solve for x
    x = 11,164,922,844.36/118,550.40
  6. Step 6: Final answer
    x = 94,178.70

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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.