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Finding the Fourth Proportional to 172,999.80, 238,698.90 and 97,533.72

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Solution

The fourth proportional to 172,999.80, 238,698.90 and 97,533.72 is: 134,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,999.80 : 238,698.90 = 97,533.72 : x
  2. Step 2: Convert to fraction form
    172,999.80/238,698.90 = 97,533.72/x
  3. Step 3: Cross multiply
    172,999.80x = 238,698.90 × 97,533.72
  4. Step 4: Simplify right side
    172,999.80x = 23,281,191,676.91
  5. Step 5: Solve for x
    x = 23,281,191,676.91/172,999.80
  6. Step 6: Final answer
    x = 134,573.52

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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.