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Finding the Fourth Proportional to 97,776.60, 134,931.06 and 55,334.22

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Solution

The fourth proportional to 97,776.60, 134,931.06 and 55,334.22 is: 76,360.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,776.60 : 134,931.06 = 55,334.22 : x
  2. Step 2: Convert to fraction form
    97,776.60/134,931.06 = 55,334.22/x
  3. Step 3: Cross multiply
    97,776.60x = 134,931.06 × 55,334.22
  4. Step 4: Simplify right side
    97,776.60x = 7,466,304,958.87
  5. Step 5: Solve for x
    x = 7,466,304,958.87/97,776.60
  6. Step 6: Final answer
    x = 76,360.86

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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.