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Finding the Fourth Proportional to 90,523.58, 124,928.73 and 54,715.10

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Solution

The fourth proportional to 90,523.58, 124,928.73 and 54,715.10 is: 75,510.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,523.58 : 124,928.73 = 54,715.10 : x
  2. Step 2: Convert to fraction form
    90,523.58/124,928.73 = 54,715.10/x
  3. Step 3: Cross multiply
    90,523.58x = 124,928.73 × 54,715.10
  4. Step 4: Simplify right side
    90,523.58x = 6,835,487,330.18
  5. Step 5: Solve for x
    x = 6,835,487,330.18/90,523.58
  6. Step 6: Final answer
    x = 75,510.58

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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.