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Finding the Fourth Proportional to 74,648.57, 112,085.15 and 64,232.07

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Solution

The fourth proportional to 74,648.57, 112,085.15 and 64,232.07 is: 96,444.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,648.57 : 112,085.15 = 64,232.07 : x
  2. Step 2: Convert to fraction form
    74,648.57/112,085.15 = 64,232.07/x
  3. Step 3: Cross multiply
    74,648.57x = 112,085.15 × 64,232.07
  4. Step 4: Simplify right side
    74,648.57x = 7,199,460,879.60
  5. Step 5: Solve for x
    x = 7,199,460,879.60/74,648.57
  6. Step 6: Final answer
    x = 96,444.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.