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Finding the Fourth Proportional to 99,257.84, 136,787.16 and 97,436.40

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Solution

The fourth proportional to 99,257.84, 136,787.16 and 97,436.40 is: 134,277.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,257.84 : 136,787.16 = 97,436.40 : x
  2. Step 2: Convert to fraction form
    99,257.84/136,787.16 = 97,436.40/x
  3. Step 3: Cross multiply
    99,257.84x = 136,787.16 × 97,436.40
  4. Step 4: Simplify right side
    99,257.84x = 13,328,048,436.62
  5. Step 5: Solve for x
    x = 13,328,048,436.62/99,257.84
  6. Step 6: Final answer
    x = 134,277.03

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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.