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Finding the Fourth Proportional to 97,776.60, 134,948.59 and 55,335.13

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Solution

The fourth proportional to 97,776.60, 134,948.59 and 55,335.13 is: 76,372.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,776.60 : 134,948.59 = 55,335.13 : x
  2. Step 2: Convert to fraction form
    97,776.60/134,948.59 = 55,335.13/x
  3. Step 3: Cross multiply
    97,776.60x = 134,948.59 × 55,335.13
  4. Step 4: Simplify right side
    97,776.60x = 7,467,397,096.22
  5. Step 5: Solve for x
    x = 7,467,397,096.22/97,776.60
  6. Step 6: Final answer
    x = 76,372.03

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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.