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Finding the Fourth Proportional to 124,368.60, 171,628.02 and 67,779.48

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Solution

The fourth proportional to 124,368.60, 171,628.02 and 67,779.48 is: 93,535.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,368.60 : 171,628.02 = 67,779.48 : x
  2. Step 2: Convert to fraction form
    124,368.60/171,628.02 = 67,779.48/x
  3. Step 3: Cross multiply
    124,368.60x = 171,628.02 × 67,779.48
  4. Step 4: Simplify right side
    124,368.60x = 11,632,857,949.03
  5. Step 5: Solve for x
    x = 11,632,857,949.03/124,368.60
  6. Step 6: Final answer
    x = 93,535.33

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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.