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Finding the Fourth Proportional to 124,475.94, 171,779.13 and 67,889.34

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Solution

The fourth proportional to 124,475.94, 171,779.13 and 67,889.34 is: 93,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,475.94 : 171,779.13 = 67,889.34 : x
  2. Step 2: Convert to fraction form
    124,475.94/171,779.13 = 67,889.34/x
  3. Step 3: Cross multiply
    124,475.94x = 171,779.13 × 67,889.34
  4. Step 4: Simplify right side
    124,475.94x = 11,661,971,761.47
  5. Step 5: Solve for x
    x = 11,661,971,761.47/124,475.94
  6. Step 6: Final answer
    x = 93,688.56

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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.