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Finding the Fourth Proportional to 124,649.34, 172,013.92 and 70,933.24

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Solution

The fourth proportional to 124,649.34, 172,013.92 and 70,933.24 is: 97,886.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,649.34 : 172,013.92 = 70,933.24 : x
  2. Step 2: Convert to fraction form
    124,649.34/172,013.92 = 70,933.24/x
  3. Step 3: Cross multiply
    124,649.34x = 172,013.92 × 70,933.24
  4. Step 4: Simplify right side
    124,649.34x = 12,201,504,670.70
  5. Step 5: Solve for x
    x = 12,201,504,670.70/124,649.34
  6. Step 6: Final answer
    x = 97,886.64

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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.