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Finding the Fourth Proportional to 172,843.36, 238,522.80 and 97,416.16

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Solution

The fourth proportional to 172,843.36, 238,522.80 and 97,416.16 is: 134,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,843.36 : 238,522.80 = 97,416.16 : x
  2. Step 2: Convert to fraction form
    172,843.36/238,522.80 = 97,416.16/x
  3. Step 3: Cross multiply
    172,843.36x = 238,522.80 × 97,416.16
  4. Step 4: Simplify right side
    172,843.36x = 23,235,975,248.45
  5. Step 5: Solve for x
    x = 23,235,975,248.45/172,843.36
  6. Step 6: Final answer
    x = 134,433.72

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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.