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Finding the Fourth Proportional to 118,503.84, 163,537.88 and 70,748.27

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Solution

The fourth proportional to 118,503.84, 163,537.88 and 70,748.27 is: 97,634.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,503.84 : 163,537.88 = 70,748.27 : x
  2. Step 2: Convert to fraction form
    118,503.84/163,537.88 = 70,748.27/x
  3. Step 3: Cross multiply
    118,503.84x = 163,537.88 × 70,748.27
  4. Step 4: Simplify right side
    118,503.84x = 11,570,020,918.04
  5. Step 5: Solve for x
    x = 11,570,020,918.04/118,503.84
  6. Step 6: Final answer
    x = 97,634.14

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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.