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Finding the Fourth Proportional to 118,792.68, 163,933.88 and 71,046.02

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Solution

The fourth proportional to 118,792.68, 163,933.88 and 71,046.02 is: 98,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,792.68 : 163,933.88 = 71,046.02 : x
  2. Step 2: Convert to fraction form
    118,792.68/163,933.88 = 71,046.02/x
  3. Step 3: Cross multiply
    118,792.68x = 163,933.88 × 71,046.02
  4. Step 4: Simplify right side
    118,792.68x = 11,646,849,717.16
  5. Step 5: Solve for x
    x = 11,646,849,717.16/118,792.68
  6. Step 6: Final answer
    x = 98,043.50

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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.