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Finding the Fourth Proportional to 99,583.61, 137,425.34 and 54,261.55

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Solution

The fourth proportional to 99,583.61, 137,425.34 and 54,261.55 is: 74,880.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,583.61 : 137,425.34 = 54,261.55 : x
  2. Step 2: Convert to fraction form
    99,583.61/137,425.34 = 54,261.55/x
  3. Step 3: Cross multiply
    99,583.61x = 137,425.34 × 54,261.55
  4. Step 4: Simplify right side
    99,583.61x = 7,456,911,749.77
  5. Step 5: Solve for x
    x = 7,456,911,749.77/99,583.61
  6. Step 6: Final answer
    x = 74,880.92

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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.