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Finding the Fourth Proportional to 176,153.91, 242,756.80 and 172,915.03

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Solution

The fourth proportional to 176,153.91, 242,756.80 and 172,915.03 is: 238,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,153.91 : 242,756.80 = 172,915.03 : x
  2. Step 2: Convert to fraction form
    176,153.91/242,756.80 = 172,915.03/x
  3. Step 3: Cross multiply
    176,153.91x = 242,756.80 × 172,915.03
  4. Step 4: Simplify right side
    176,153.91x = 41,976,299,354.70
  5. Step 5: Solve for x
    x = 41,976,299,354.70/176,153.91
  6. Step 6: Final answer
    x = 238,293.32

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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.