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Finding the Fourth Proportional to 124,475.72, 171,775.70 and 70,760.74

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Solution

The fourth proportional to 124,475.72, 171,775.70 and 70,760.74 is: 97,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,475.72 : 171,775.70 = 70,760.74 : x
  2. Step 2: Convert to fraction form
    124,475.72/171,775.70 = 70,760.74/x
  3. Step 3: Cross multiply
    124,475.72x = 171,775.70 × 70,760.74
  4. Step 4: Simplify right side
    124,475.72x = 12,154,975,267.21
  5. Step 5: Solve for x
    x = 12,154,975,267.21/124,475.72
  6. Step 6: Final answer
    x = 97,649.37

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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.