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Finding the Fourth Proportional to 75,590.40, 113,385.60 and 63,926.40

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Solution

The fourth proportional to 75,590.40, 113,385.60 and 63,926.40 is: 95,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,590.40 : 113,385.60 = 63,926.40 : x
  2. Step 2: Convert to fraction form
    75,590.40/113,385.60 = 63,926.40/x
  3. Step 3: Cross multiply
    75,590.40x = 113,385.60 × 63,926.40
  4. Step 4: Simplify right side
    75,590.40x = 7,248,333,219.84
  5. Step 5: Solve for x
    x = 7,248,333,219.84/75,590.40
  6. Step 6: Final answer
    x = 95,889.60

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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.