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Finding the Fourth Proportional to 107,718.46, 148,629.72 and 65,252.32

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Solution

The fourth proportional to 107,718.46, 148,629.72 and 65,252.32 is: 90,035.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,718.46 : 148,629.72 = 65,252.32 : x
  2. Step 2: Convert to fraction form
    107,718.46/148,629.72 = 65,252.32/x
  3. Step 3: Cross multiply
    107,718.46x = 148,629.72 × 65,252.32
  4. Step 4: Simplify right side
    107,718.46x = 9,698,434,050.95
  5. Step 5: Solve for x
    x = 9,698,434,050.95/107,718.46
  6. Step 6: Final answer
    x = 90,035.02

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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.