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Finding the Fourth Proportional to 255,767.77, 383,652.94 and 66,214.84

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Solution

The fourth proportional to 255,767.77, 383,652.94 and 66,214.84 is: 99,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,767.77 : 383,652.94 = 66,214.84 : x
  2. Step 2: Convert to fraction form
    255,767.77/383,652.94 = 66,214.84/x
  3. Step 3: Cross multiply
    255,767.77x = 383,652.94 × 66,214.84
  4. Step 4: Simplify right side
    255,767.77x = 25,403,518,695.82
  5. Step 5: Solve for x
    x = 25,403,518,695.82/255,767.77
  6. Step 6: Final answer
    x = 99,322.60

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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.