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Finding the Fourth Proportional to 124,602.90, 171,950.85 and 76,837.14

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Solution

The fourth proportional to 124,602.90, 171,950.85 and 76,837.14 is: 106,034.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,602.90 : 171,950.85 = 76,837.14 : x
  2. Step 2: Convert to fraction form
    124,602.90/171,950.85 = 76,837.14/x
  3. Step 3: Cross multiply
    124,602.90x = 171,950.85 × 76,837.14
  4. Step 4: Simplify right side
    124,602.90x = 13,212,211,534.57
  5. Step 5: Solve for x
    x = 13,212,211,534.57/124,602.90
  6. Step 6: Final answer
    x = 106,034.54

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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.