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Finding the Fourth Proportional to 141,154.76, 194,798.58 and 77,497.40

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Solution

The fourth proportional to 141,154.76, 194,798.58 and 77,497.40 is: 106,949.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,154.76 : 194,798.58 = 77,497.40 : x
  2. Step 2: Convert to fraction form
    141,154.76/194,798.58 = 77,497.40/x
  3. Step 3: Cross multiply
    141,154.76x = 194,798.58 × 77,497.40
  4. Step 4: Simplify right side
    141,154.76x = 15,096,383,473.69
  5. Step 5: Solve for x
    x = 15,096,383,473.69/141,154.76
  6. Step 6: Final answer
    x = 106,949.16

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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.