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Finding the Fourth Proportional to 61,512.32, 91,808.32 and 56,587.52

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Solution

The fourth proportional to 61,512.32, 91,808.32 and 56,587.52 is: 84,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,512.32 : 91,808.32 = 56,587.52 : x
  2. Step 2: Convert to fraction form
    61,512.32/91,808.32 = 56,587.52/x
  3. Step 3: Cross multiply
    61,512.32x = 91,808.32 × 56,587.52
  4. Step 4: Simplify right side
    61,512.32x = 5,195,205,144.17
  5. Step 5: Solve for x
    x = 5,195,205,144.17/61,512.32
  6. Step 6: Final answer
    x = 84,457.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.