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Finding the Fourth Proportional to 259,276.77, 357,674.77 and 173,256.87

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Solution

The fourth proportional to 259,276.77, 357,674.77 and 173,256.87 is: 239,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,276.77 : 357,674.77 = 173,256.87 : x
  2. Step 2: Convert to fraction form
    259,276.77/357,674.77 = 173,256.87/x
  3. Step 3: Cross multiply
    259,276.77x = 357,674.77 × 173,256.87
  4. Step 4: Simplify right side
    259,276.77x = 61,969,610,261.89
  5. Step 5: Solve for x
    x = 61,969,610,261.89/259,276.77
  6. Step 6: Final answer
    x = 239,009.50

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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.