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Finding the Fourth Proportional to 90,588.48, 135,830.88 and 37,953.60

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Solution

The fourth proportional to 90,588.48, 135,830.88 and 37,953.60 is: 56,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,588.48 : 135,830.88 = 37,953.60 : x
  2. Step 2: Convert to fraction form
    90,588.48/135,830.88 = 37,953.60/x
  3. Step 3: Cross multiply
    90,588.48x = 135,830.88 × 37,953.60
  4. Step 4: Simplify right side
    90,588.48x = 5,155,270,887.17
  5. Step 5: Solve for x
    x = 5,155,270,887.17/90,588.48
  6. Step 6: Final answer
    x = 56,908.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.