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Finding the Fourth Proportional to 144,857.40, 216,848.70 and 127,361.40

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Solution

The fourth proportional to 144,857.40, 216,848.70 and 127,361.40 is: 190,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,857.40 : 216,848.70 = 127,361.40 : x
  2. Step 2: Convert to fraction form
    144,857.40/216,848.70 = 127,361.40/x
  3. Step 3: Cross multiply
    144,857.40x = 216,848.70 × 127,361.40
  4. Step 4: Simplify right side
    144,857.40x = 27,618,154,020.18
  5. Step 5: Solve for x
    x = 27,618,154,020.18/144,857.40
  6. Step 6: Final answer
    x = 190,657.53

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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.