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Finding the Fourth Proportional to 75,307.75, 112,961.74 and 56,352.16

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Solution

The fourth proportional to 75,307.75, 112,961.74 and 56,352.16 is: 84,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,307.75 : 112,961.74 = 56,352.16 : x
  2. Step 2: Convert to fraction form
    75,307.75/112,961.74 = 56,352.16/x
  3. Step 3: Cross multiply
    75,307.75x = 112,961.74 × 56,352.16
  4. Step 4: Simplify right side
    75,307.75x = 6,365,638,046.36
  5. Step 5: Solve for x
    x = 6,365,638,046.36/75,307.75
  6. Step 6: Final answer
    x = 84,528.33

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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.