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Finding the Fourth Proportional to 259,063.74, 357,445.71 and 145,886.46

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Solution

The fourth proportional to 259,063.74, 357,445.71 and 145,886.46 is: 201,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,063.74 : 357,445.71 = 145,886.46 : x
  2. Step 2: Convert to fraction form
    259,063.74/357,445.71 = 145,886.46/x
  3. Step 3: Cross multiply
    259,063.74x = 357,445.71 × 145,886.46
  4. Step 4: Simplify right side
    259,063.74x = 52,146,489,274.09
  5. Step 5: Solve for x
    x = 52,146,489,274.09/259,063.74
  6. Step 6: Final answer
    x = 201,288.26

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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.