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Finding the Fourth Proportional to 161,554.40, 242,623.20 and 117,231.20

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Solution

The fourth proportional to 161,554.40, 242,623.20 and 117,231.20 is: 176,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,554.40 : 242,623.20 = 117,231.20 : x
  2. Step 2: Convert to fraction form
    161,554.40/242,623.20 = 117,231.20/x
  3. Step 3: Cross multiply
    161,554.40x = 242,623.20 × 117,231.20
  4. Step 4: Simplify right side
    161,554.40x = 28,443,008,883.84
  5. Step 5: Solve for x
    x = 28,443,008,883.84/161,554.40
  6. Step 6: Final answer
    x = 176,058.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.