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Finding the Fourth Proportional to 238,159.44, 328,660.74 and 130,740.48

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Solution

The fourth proportional to 238,159.44, 328,660.74 and 130,740.48 is: 180,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,159.44 : 328,660.74 = 130,740.48 : x
  2. Step 2: Convert to fraction form
    238,159.44/328,660.74 = 130,740.48/x
  3. Step 3: Cross multiply
    238,159.44x = 328,660.74 × 130,740.48
  4. Step 4: Simplify right side
    238,159.44x = 42,969,262,904.76
  5. Step 5: Solve for x
    x = 42,969,262,904.76/238,159.44
  6. Step 6: Final answer
    x = 180,422.25

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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.