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Finding the Fourth Proportional to 92,888.48, 128,187.59 and 50,447.01

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Solution

The fourth proportional to 92,888.48, 128,187.59 and 50,447.01 is: 69,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,888.48 : 128,187.59 = 50,447.01 : x
  2. Step 2: Convert to fraction form
    92,888.48/128,187.59 = 50,447.01/x
  3. Step 3: Cross multiply
    92,888.48x = 128,187.59 × 50,447.01
  4. Step 4: Simplify right side
    92,888.48x = 6,466,680,634.61
  5. Step 5: Solve for x
    x = 6,466,680,634.61/92,888.48
  6. Step 6: Final answer
    x = 69,617.68

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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.