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Finding the Fourth Proportional to 73,019.76, 100,782.88 and 46,145.12

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Solution

The fourth proportional to 73,019.76, 100,782.88 and 46,145.12 is: 63,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,019.76 : 100,782.88 = 46,145.12 : x
  2. Step 2: Convert to fraction form
    73,019.76/100,782.88 = 46,145.12/x
  3. Step 3: Cross multiply
    73,019.76x = 100,782.88 × 46,145.12
  4. Step 4: Simplify right side
    73,019.76x = 4,650,638,091.55
  5. Step 5: Solve for x
    x = 4,650,638,091.55/73,019.76
  6. Step 6: Final answer
    x = 63,690.13

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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.