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Finding the Fourth Proportional to 142,733.40, 214,100.10 and 101,261.40

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Solution

The fourth proportional to 142,733.40, 214,100.10 and 101,261.40 is: 151,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,733.40 : 214,100.10 = 101,261.40 : x
  2. Step 2: Convert to fraction form
    142,733.40/214,100.10 = 101,261.40/x
  3. Step 3: Cross multiply
    142,733.40x = 214,100.10 × 101,261.40
  4. Step 4: Simplify right side
    142,733.40x = 21,680,075,866.14
  5. Step 5: Solve for x
    x = 21,680,075,866.14/142,733.40
  6. Step 6: Final answer
    x = 151,892.10

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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.