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Finding the Fourth Proportional to 98,113.29, 135,392.34 and 55,670.91

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Solution

The fourth proportional to 98,113.29, 135,392.34 and 55,670.91 is: 76,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,113.29 : 135,392.34 = 55,670.91 : x
  2. Step 2: Convert to fraction form
    98,113.29/135,392.34 = 55,670.91/x
  3. Step 3: Cross multiply
    98,113.29x = 135,392.34 × 55,670.91
  4. Step 4: Simplify right side
    98,113.29x = 7,537,414,774.83
  5. Step 5: Solve for x
    x = 7,537,414,774.83/98,113.29
  6. Step 6: Final answer
    x = 76,823.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.