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Finding the Fourth Proportional to 144,970.50, 217,603.20 and 99,994.98

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Solution

The fourth proportional to 144,970.50, 217,603.20 and 99,994.98 is: 150,094.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,970.50 : 217,603.20 = 99,994.98 : x
  2. Step 2: Convert to fraction form
    144,970.50/217,603.20 = 99,994.98/x
  3. Step 3: Cross multiply
    144,970.50x = 217,603.20 × 99,994.98
  4. Step 4: Simplify right side
    144,970.50x = 21,759,227,631.94
  5. Step 5: Solve for x
    x = 21,759,227,631.94/144,970.50
  6. Step 6: Final answer
    x = 150,094.18

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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.