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Finding the Fourth Proportional to 106,059.78, 146,353.78 and 62,445.40

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Solution

The fourth proportional to 106,059.78, 146,353.78 and 62,445.40 is: 86,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,059.78 : 146,353.78 = 62,445.40 : x
  2. Step 2: Convert to fraction form
    106,059.78/146,353.78 = 62,445.40/x
  3. Step 3: Cross multiply
    106,059.78x = 146,353.78 × 62,445.40
  4. Step 4: Simplify right side
    106,059.78x = 9,139,119,811.61
  5. Step 5: Solve for x
    x = 9,139,119,811.61/106,059.78
  6. Step 6: Final answer
    x = 86,169.52

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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.