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Finding the Fourth Proportional to 90,315.53, 124,596.15 and 63,475.57

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Solution

The fourth proportional to 90,315.53, 124,596.15 and 63,475.57 is: 87,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,315.53 : 124,596.15 = 63,475.57 : x
  2. Step 2: Convert to fraction form
    90,315.53/124,596.15 = 63,475.57/x
  3. Step 3: Cross multiply
    90,315.53x = 124,596.15 × 63,475.57
  4. Step 4: Simplify right side
    90,315.53x = 7,908,811,641.06
  5. Step 5: Solve for x
    x = 7,908,811,641.06/90,315.53
  6. Step 6: Final answer
    x = 87,568.68

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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.