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Finding the Fourth Proportional to 92,851.95, 128,134.45 and 52,564.68

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Solution

The fourth proportional to 92,851.95, 128,134.45 and 52,564.68 is: 72,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,851.95 : 128,134.45 = 52,564.68 : x
  2. Step 2: Convert to fraction form
    92,851.95/128,134.45 = 52,564.68/x
  3. Step 3: Cross multiply
    92,851.95x = 128,134.45 × 52,564.68
  4. Step 4: Simplify right side
    92,851.95x = 6,735,346,361.23
  5. Step 5: Solve for x
    x = 6,735,346,361.23/92,851.95
  6. Step 6: Final answer
    x = 72,538.56

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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.