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Finding the Fourth Proportional to 99,195.84, 136,874.88 and 63,417.60

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Solution

The fourth proportional to 99,195.84, 136,874.88 and 63,417.60 is: 87,506.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,195.84 : 136,874.88 = 63,417.60 : x
  2. Step 2: Convert to fraction form
    99,195.84/136,874.88 = 63,417.60/x
  3. Step 3: Cross multiply
    99,195.84x = 136,874.88 × 63,417.60
  4. Step 4: Simplify right side
    99,195.84x = 8,680,276,389.89
  5. Step 5: Solve for x
    x = 8,680,276,389.89/99,195.84
  6. Step 6: Final answer
    x = 87,506.46

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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.