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Finding the Fourth Proportional to 112,644.48, 155,466.84 and 64,246.48

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Solution

The fourth proportional to 112,644.48, 155,466.84 and 64,246.48 is: 88,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,644.48 : 155,466.84 = 64,246.48 : x
  2. Step 2: Convert to fraction form
    112,644.48/155,466.84 = 64,246.48/x
  3. Step 3: Cross multiply
    112,644.48x = 155,466.84 × 64,246.48
  4. Step 4: Simplify right side
    112,644.48x = 9,988,197,226.72
  5. Step 5: Solve for x
    x = 9,988,197,226.72/112,644.48
  6. Step 6: Final answer
    x = 88,670.10

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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.