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Finding the Fourth Proportional to 75,153.35, 112,676.63 and 37,686.40

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Solution

The fourth proportional to 75,153.35, 112,676.63 and 37,686.40 is: 56,502.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,153.35 : 112,676.63 = 37,686.40 : x
  2. Step 2: Convert to fraction form
    75,153.35/112,676.63 = 37,686.40/x
  3. Step 3: Cross multiply
    75,153.35x = 112,676.63 × 37,686.40
  4. Step 4: Simplify right side
    75,153.35x = 4,246,375,985.45
  5. Step 5: Solve for x
    x = 4,246,375,985.45/75,153.35
  6. Step 6: Final answer
    x = 56,502.82

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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.