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Finding the Fourth Proportional to 161,422.84, 241,973.58 and 77,084.40

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Solution

The fourth proportional to 161,422.84, 241,973.58 and 77,084.40 is: 115,549.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,422.84 : 241,973.58 = 77,084.40 : x
  2. Step 2: Convert to fraction form
    161,422.84/241,973.58 = 77,084.40/x
  3. Step 3: Cross multiply
    161,422.84x = 241,973.58 × 77,084.40
  4. Step 4: Simplify right side
    161,422.84x = 18,652,388,637.67
  5. Step 5: Solve for x
    x = 18,652,388,637.67/161,422.84
  6. Step 6: Final answer
    x = 115,549.87

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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.